Logic

I have two coins, one is marked George I and one is marked George IV. One is genuine but one is a forgery. Which is the forgery?

No matter how terrible things get for the people of the Arctic, they will not eat a penguin. Why not?

The yellow house has yellow window, the red house has red windows, what colour windows does the green house have?

What is the difference between yesterday and tomorrow?

Riddles and Answers