What is the centre of gravity?

What number when divided in half becomes zero?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

Name a key which is hardest to turn.

When we see 2 but call 10?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

What does the below mathematical rebus mean?

What can go up a chimney down, but can’t go down a chimney up?

Do you know who was buried in John's tomb?

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?