If you think you excel in mathematics and logical thinking, here is a compilation of some tricky riddles which you might just find interesting. The only scenario wherein you are likely to find these riddles easy is, if you already know the answers.
Brain teaser - Kids Riddles Logic Puzzle - brain teaser for kids with answer - Think of a number. Double it. Add ten. Half it. Take away the number you started with. The result is five. Brought to you by http://www.brainfans.com