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

What occurs twice in a week, once in a year but never in a day?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

John and Jill are madly in love with each other. To remind Jill of his pure love, John wants to send her a ring by post but in their country where burglary is quite prominent, any package that is not locked comes under the risk of being stolen for the contents.

John and Jill possess many padlocks but neither one of them has the other key.

Can you find a way John can send the ring to Jill safely?

What is harder to catch the faster you run?

Can you find out which triangle will have a bigger area among the following?
1. A triangle with sides 300, 400 and 500
2. A triangle with sides 300, 400 and 700

If 21x = 79x, what is the value of x?