How can you leave a room with two legs and return with six legs?

What four weights can be used to balance from 1 to 30 pounds?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

It was a dark stormy night and a couple were in a car driving madly to a city. The car broke down and the husband had to go get help from someone who spoke his language. He was afraid to leave his wife alone in the car so he locked the car before leaving. When he came back, the car was in the same state as he had left it but his wife was dead, there was blood on the floor and there was a stranger in the car. What happened?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

John bought 150 chocolates but he misplaced some of them. His Father asked him how many chocolates were misplaced.
He gave the following answer to him:
If you count in pairs, one remains
If you count in threes, two remain
If you count in fours, three remain
If you count in fives, four remain
If you count in sixes, five remain
If you count in sevens, no chocolate remains.

Can you analyze the statements and tell us how many chocolates were lost?

There is something which you can be arrested for attempting but not for successfully completing.

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?

Prove that twice of ten is the same as twice of eleven.