Originally posted by: gdextreme
People you are invited to post riddles too.
Originally posted by: nace186
Originally posted by: PlasmaBomb
Originally posted by: nace186
Originally posted by: gdextreme
3) There are 10 bags each containing 100 gold coins each. A genuine gold coin weighs 10gm each. A fake one weighs 9gm each. One bag contains all fake coins. Using an electroic weighing balance how do I check which bag has the fake coins if I am allowed to use the balance only once.
Don't reply if you have solved it before.
Take one coin from each bag and divide it in half.
Balance each half on the scale.
one side should be 1gm less.
Take one out from each side at a time, until it's balance.
The last one on the side that weight less is the fake coin/bag.
You are going to accurately cut a coin in half?
No, what I meant is divide into 2, so each side of the balance will have 5 coins.
Originally posted by: AstroManLuca
Originally posted by: Nik
Originally posted by: DingDingDao
1) Light first stick on both ends (finished in 15 minutes)
2) Light second stick on one end (finished in 30 minutes)
Ding.
How do you light an incense stick from both ends? That doesn't seem physically possible.
Originally posted by: gdextreme
Another Classic one. The answer to this on came to me almost insantaneously so its one of my favourites.
4) Captain Frank and some of the boys were exchanging old war stories.
Art Bragg offered one about how his grandfather led a battalion against a
German division during World War I. Through brilliant maneuvers he
defeated them and captured valuable territory. After the battle he was
presented with a sword bearing the inscription "To Captain Bragg for
Bravery, Daring and Leadership. World War I. From the Men of Battalion
Bravery, Daring and Leadership. World War I. From the Men of Battalion
." Captain Frank looked at Art and said, "You really don't expect
anyone to believe that yarn, do you?" What's wrong with the story?
Originally posted by: nace186
Originally posted by: PlasmaBomb
Originally posted by: nace186
Originally posted by: gdextreme
3) There are 10 bags each containing 100 gold coins each. A genuine gold coin weighs 10gm each. A fake one weighs 9gm each. One bag contains all fake coins. Using an electroic weighing balance how do I check which bag has the fake coins if I am allowed to use the balance only once.
Don't reply if you have solved it before.
Take one coin from each bag and divide it in half.
Balance each half on the scale.
one side should be 1gm less.
Take one out from each side at a time, until it's balance.
The last one on the side that weight less is the fake coin/bag.
You are going to accurately cut a coin in half?
No, what I meant is divide into 2, so each side of the balance will have 5 coins.
Originally posted by: nace186
Originally posted by: gdextreme
3) There are 10 bags each containing 100 gold coins each. A genuine gold coin weighs 10gm each. A fake one weighs 9gm each. One bag contains all fake coins. Using an electroic weighing balance how do I check which bag has the fake coins if I am allowed to use the balance only once.
Don't reply if you have solved it before.
Take one coin from each bag and divide it in half.
Balance each half on the scale.
one side should be 1gm less.
Take one out from each side at a time, until it's balance.
The last one on the side that weight less is the fake coin/bag.
Originally posted by: techs
If theres an A frame house with a perfectly angled roof and a rooster lays an egg will it roll off the north or the south end?
Originally posted by: PlasmaBomb
Originally posted by: techs
If theres an A frame house with a perfectly angled roof and a rooster lays an egg will it roll off the north or the south end?
Unpossible.
Originally posted by: Chronoshock
I remember this one back from middle school, but I like it.
Three people check into a hotel. They pay $30 to the manager and go to their room. The manager finds out that the room rate is $25 and gives the bellboy $5 to return to the guests. On the way to the room the bellboy reasons that $5 would be difficult to split among three people so he pockets $2 and gives $1 to each person. Now each person paid $10 and got back $1. So they paid $9 each, totaling $27. The bellboy has another $2, adding up to $29.
Where is the remaining dollar?
Originally posted by: PlasmaBomb
Originally posted by: techs
If theres an A frame house with a perfectly angled roof and a rooster lays an egg will it roll off the north or the south end?
Unpossible.
Originally posted by: nanobreath
Originally posted by: nace186
Originally posted by: gdextreme
3) There are 10 bags each containing 100 gold coins each. A genuine gold coin weighs 10gm each. A fake one weighs 9gm each. One bag contains all fake coins. Using an electroic weighing balance how do I check which bag has the fake coins if I am allowed to use the balance only once.
Don't reply if you have solved it before.
Take one coin from each bag and divide it in half.
Balance each half on the scale.
one side should be 1gm less.
Take one out from each side at a time, until it's balance.
The last one on the side that weight less is the fake coin/bag.
If you are balancing you are taking multiple readings.
Take the following out of each bag.
Bag A - 1 coin
Bag B - 2 coins
Bag C - 3 coins
Bag D - 4 coins
Bag E - 5 coins
Bag F - 6 coins
Bag G - 7 coins
Bag H - 8 coins
Bag I - 9 coins
Bag J - 10 coins
Total : 55 coins
Weigh said 55 coins. If they were all real they would weigh 550gm. Whatever amount your weight is off by is the bag you took the fake coins from.
That is really more of a logic problem than a riddle.
Originally posted by: nanobreath
Originally posted by: nace186
Originally posted by: gdextreme
3) There are 10 bags each containing 100 gold coins each. A genuine gold coin weighs 10gm each. A fake one weighs 9gm each. One bag contains all fake coins. Using an electroic weighing balance how do I check which bag has the fake coins if I am allowed to use the balance only once.
Don't reply if you have solved it before.
Take one coin from each bag and divide it in half.
Balance each half on the scale.
one side should be 1gm less.
Take one out from each side at a time, until it's balance.
The last one on the side that weight less is the fake coin/bag.
If you are balancing you are taking multiple readings.
Take the following out of each bag.
Bag A - 1 coin
Bag B - 2 coins
Bag C - 3 coins
Bag D - 4 coins
Bag E - 5 coins
Bag F - 6 coins
Bag G - 7 coins
Bag H - 8 coins
Bag I - 9 coins
Bag J - 10 coins
Total : 55 coins
Weigh said 55 coins. If they were all real they would weigh 550gm. Whatever amount your weight is off by is the bag you took the fake coins from.
That is really more of a logic problem than a riddle.
Originally posted by: gdextreme
Originally posted by: Chronoshock
I remember this one back from middle school, but I like it.
Three people check into a hotel. They pay $30 to the manager and go to their room. The manager finds out that the room rate is $25 and gives the bellboy $5 to return to the guests. On the way to the room the bellboy reasons that $5 would be difficult to split among three people so he pockets $2 and gives $1 to each person. Now each person paid $10 and got back $1. So they paid $9 each, totaling $27. The bellboy has another $2, adding up to $29.
Where is the remaining dollar?
This is way too easy. One of the first riddles I solved, but a nice one neverthless. I'll wait for somebody to try it.
Originally posted by: gdextreme
Originally posted by: Chronoshock
I remember this one back from middle school, but I like it.
Three people check into a hotel. They pay $30 to the manager and go to their room. The manager finds out that the room rate is $25 and gives the bellboy $5 to return to the guests. On the way to the room the bellboy reasons that $5 would be difficult to split among three people so he pockets $2 and gives $1 to each person. Now each person paid $10 and got back $1. So they paid $9 each, totaling $27. The bellboy has another $2, adding up to $29.
Where is the remaining dollar?
This is way too easy. One of the first riddles I solved, but a nice one neverthless. I'll wait for somebody to try it.
Originally posted by: techs
Here's a classic from the All in the Family tv show:
A father and his son are in a car. The car goes off the road and hits a tree, killing the father and seriously injuring the son. An ambulance arrives and rushes the son to the emergency room. A doctor enters the emergency room, takes one look at the boy and says, "I can't operate on him. He's my son."
How can that be?
Originally posted by: techs
Here's a classic from the All in the Family tv show:
A father and his son are in a car. The car goes off the road and hits a tree, killing the father and seriously injuring the son. An ambulance arrives and rushes the son to the emergency room. A doctor enters the emergency room, takes one look at the boy and says, "I can't operate on him. He's my son."
How can that be?
Originally posted by: Chronoshock
I remember this one back from middle school, but I like it.
Three people check into a hotel. They pay $30 to the manager and go to their room. The manager finds out that the room rate is $25 and gives the bellboy $5 to return to the guests. On the way to the room the bellboy reasons that $5 would be difficult to split among three people so he pockets $2 and gives $1 to each person. Now each person paid $10 and got back $1. So they paid $9 each, totaling $27. The bellboy has another $2, adding up to $29.
Where is the remaining dollar?
Originally posted by: gdextreme
Unbelievable! Took me a whole day to solve it in 9th grade.
I always thought riddles where based on logic
One girl went into the room twice?Originally posted by: gdextreme
10) There are 6 apples in a basket kept on a table inside a room. After every 10 minutes a girl comes into the room and takes one apple with her. After the sixth girl leaves the room, there is still an apple left in the basket. How is this possible?
Originally posted by: techs
One girl went into the room twice?Originally posted by: gdextreme
10) There are 6 apples in a basket kept on a table inside a room. After every 10 minutes a girl comes into the room and takes one apple with her. After the sixth girl leaves the room, there is still an apple left in the basket. How is this possible?