Which tank will fill first?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

What does this Rebus Picture mean?

If your uncle’s sister is not your aunt, what relation is she to you?

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?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?