How many times can you subtract the number two from the number fifty?

What does a man do only once in his lifetime, but women do once a year after they are 29?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Decode this picture on T-Shirt and tell what it says ?

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

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?

You are a cab driver who pools passengers. You pick 3 people from a destination and drop 1 after an hour. 2 people climb aboard at the same time and you drop 3 at the next destination. After some time, you pick 2 passengers only to drop 1 after a short distance where 3 more passengers climb up the cab. You leave the rest of the passengers one by one to their destination and then come back home.

Can you tell the eye color of the cab driver?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?