Can you identify the hidden rebus in the image below?

Can you write down eight eights so that they add up to one thousand?

The centre of the third figure is empty. What digit should fit inside?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

When it is alive we sing, when it is dead we clap our hands. What is it?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?