Take away the whole and some still remain. What is it?

Replace the question mark with the correct number.

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

What is the coolest letter in the alphabet?

There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units.

Can you calculate the dimensions of this box with the given data?

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

Can you place six X (crosses) in below board without making three in a row in any way ?

What is the riddle which can be asked all day with a different correct answer each time.

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?