When my father was 31 I was 8.
Now he is twice as old as me.
How old am I?
Answer: I must be 23 if my father is twice as old as me.
Select a pack of riddles and try to solve it in an interesting way.
This riddle appears in the following downloadable PDF files:
Einstein said that only 2% of the world could solve this problem. Can you do it?
Complete the grid by using logic and the given clues of each problem.
Use logic deductions to solve problems that are similar to the Einstein's Riddle.