Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Which Travels Faster? Solve below famous picture riddle:

How many triangles can you count in the figure given?

what one word does the below rebus identifies?

Prove that twice of ten is the same as twice of eleven.

What has a ring but no finger?

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?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?