My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

There is a family that live in a round house. The two parents go out for a movie and leave a babysitter to watch their son. They come back and the kid was not there. Some one kidnapped him. The maid said she was cleaning in a corner. The cook said he was making pizza. The babysitter said she was getting a board game. Who kidnapped him.

Look at the picture and find out which square is not linked with any of the other squares.

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Can you find the dog hidden in a group of pandas?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Find the number of squares in the below-given picture.