Why is the Hole below a Lock?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

Find the number of squares in the below picture

Can you place three balls such that the equation shown in the picture holds true?

In the four images below, can you find the odd one out?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?