I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

why number 8549176320 is one of a kind?

Which number should replace the question mark?

Which is heavier: a ton of bricks or a ton of feathers?

What month of the year has 28 days?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

If 21x = 79x, what is the value of x?

Find the missing number in the image below.

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

If eleven plus two equals one, what does nine plus five equal?