Best short riddles for teens

logiccleanclever

What's the missing letter? J ? M A M J J A S O N D
F. Eplanation: The letters are the first letter of each of the twelve months. The second month is February.
71.90 %
97 votes
logicmath

Think of a number. Double it. Add ten. Half it. Take away the number you started with. What is your number?
Your number is 5.
71.88 %
55 votes
tricky

I'm in you, But not in him, I go up, But not down, I'm in the colosseum, But not a tower, I'm in a puzzle, But not a riddle.
The letter U.
71.86 %
72 votes