Answer:
What coin doubles in value when half is deducted?
How do you discover something that does not exist?
If you are running in a race and pass the second place person, what place are you in?
You are participating in the swimming finals at the Olympics. In the final few seconds of the race you narrowly pass the swimmer who was in third place. What place did you get?
When you put this in a heavy wooden box the box will become lighter
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.