Are you a logical person? Could you use your logic like a tool to solve problems? Then this is where you'll find some great challenges to test your logical skills.
Here you'll find our logic riddles, including short logic riddles, easy logic riddles, hard logic riddles and long logic riddles. All the riddles are with answers.
The next number should be 13112221. Why?
Because each of these numbers describes the previous number. Starting with 1, the 2nd line is 11 (one one), then the 3rd line describes 11 as 21(two ones). Then the 4th line is 1211 which describes (one 2, one 1). And so forth...