Can you answer them????
There are 3 IDENTICAL umbrellas in a rack with NO NAMETAGS.
What is the chance in precent that only two people will walk out with the CORRECT umbrella?
There is one germ in a jar. After one minute the germ splits into two germs. After another minute the germs each split in half and so on. Thus in an hour the jar is filled. Now if you started with TWO germs how long, in minutes, would it take to fill the whole jar?