Logic Riddles

Logic riddles with answers involve looking at situations and making judgements about them by ruling out impossibilities. If you like solving maths puzzles, you will most probably like logic riddles as well.

Cookie Problem

In a cookie jar, there are ten butter cookies and ten chocolate-chip cookies. Tom sneaks over to the cookie jar in the middle of the night and tries to figure out:

  • How many cookies do I need to take out of the jar if I want to make sure to get at least two of each kind?
  • How many cookies do I need to take out of the jar if I want to make sure to get at least two butter cookies?
Riddle Answer

Romantic Candlelight Dinner

A man lights two candles and begins a romantic candlelight dinner with his wife. The candles are of equal length, but one candle is thicker than the other.

The thick candle is designed to last for 6 hours while the thin candle is designed to last for 3 hours.

At the end of the dinner, the thick candle is twice as long as the thin candle. How long did the dinner last?

Riddle Answer