What four weights can be used to balance from 1 to 30 pounds?

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

what does this below rebus represent identXQQQQQME

What do you see in the given picture?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

Move three sticks of the spiral below to form a square.

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Identify The phrase in the picture.