Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

Count the number of squares in the picture below.

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Can you quickly find which two matchstick figures are identical?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not-rounded numerals equals 24.

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Move four matchsticks to the below square to form three squares?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?