"Nothing" you cannot take "nothing" out of a container once you put "nothing" in there.
There is a thing that if you put in water and get out, put it back for about 2 minutes, you won't see it again. What is it?
It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can’t find it in the market, but you can still go shop. What is it?
It’s midnight and there is power failure. You have twenty two green socks and thirty five purple socks in your dresser drawer. How many socks do you have to take out to be sure of having a pair that matches.
