Can you find out the remainder when 3^300 is divided by 5?
Be active and find the killer in the picture Riddle below.
Can you spot the man between the coffee bean in the picture below ?
Who is generally closer to the kids, mom or dad? (it's a funny riddle)
I’m tall when I’m young, and I’m short when I’m old. What am I?
Imagine you are in a room with no windows or doors. How will you get out?
How many triangles are there in the picture below?
My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?
What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?
If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?
How many times can you subtract the number 5 from 25?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki