When I am visible to you, you cannot see me, but when I am invisible, you long to see me. I am plenty with someone patient, but all the more scarce with a hasty one. I am greater than all, but still in the control of those who value my existence. Who am I?
Answer: time
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.