Basically Montana said that you won't cure boredom doing boring stuff... You need something opposite.

I've got a good math riddle. Either it will take you like, 5 minutes...(like it did me.) Or it could take a day or even longer to figure it out. (like it did everyone else in my highschool math class.)

You have 10 stacks of coins that each have 10 coins in each stack.

Each coin weighs 1 Kilogram. Except for one stack of coins that instead weighs 2Kilograms each.

You have a scale, however you can only use it once.

How do you figure out which stack has the coins that weigh 2 Kilograms?

weigh the heavier one, or really you don't need to weigh it if you trust the given information.

^ I'm guessing put all the piles of coins on the scale at once and take them off one by one until you take one of and the wieght drops By 20Kg, that seems the way to me... Am I right???

thanks for the help guys

Your kinda close. Actually your only allowed one weighing in general though, so once you put them all on there what the weight is basically would be all the info you would get. Even if you took them off one at a time.

Say how do you make spoiler tags? I'll put the answer in one of those if i could figure out how to use the tags.

If the coins are twice as heavy then won't they be twice as big? Thats easy.

Nope, they'er all the same diameter.  The answer does involve the scale.

stop doing the task

Can I sit on the scale and pick up 1 coin at a time?

Also just picking up the coins will tell you which ones are heavier.

nope, I guessed that the material used was heavier for the coins and same shape/size.

To do a spoiler tag you use a rich text reply and use the black background and black writing.