Answer:
When you put this in a heavy wooden box the box will become lighter
What is yours but only used by others?
A man is able to contact his long lost brother who has never met. They agree to meet. When the brother arrives he is able to instantly pick him out from the crowd. How is that possible?
A man is twenty years old but has only had five birthdays. How is that possible?
What is a ten letter word that starts with gas?
I'm the source of all emotion but I'm caged in a white prison.