Question: Until I am measured, I am not known. Yet how you miss me, When I have flown What am I?

Question: Before your choose the witching hour, take care to dream the tallest tower. Than careful before you leave too soon--behold the dark and hollow moon. What's the number? (This Riddle is from the Eye of Minds, by James Dashner.)

Question: What goes up but never comes down?

Question: A wise person was once sentenced to death by a king. The king couldn't decide how to execute him so he said to the wise person, you can say anything you want, if it is true, I will hang you, if it is not true I will shoot you. In the end the king released the wise man. What did the wise man say?

Question: What is half of 2+2?