One is to three as three is to five and five is to four and four is the magic number. What is the pattern?
I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?
Which digit occurred maximum times between the number 1 and 1000?
Can you count the number of lines in the below picture?
How many triangles are there on the puzzle below?
Who is generally closer to the kids, mom or dad? (it's a funny riddle)
I am a mother. However, I never give birth. I am a father. However, I never nurse my children. Wandering is not possible for me, but standing still happens occurs rarely. Who am I?
Which is the smallest number that you can write using all the vowels exactly once?
Solve the equation by replacing the alphabet with numbers. MOM + MOM + NO = BOOK=
Can you circle exactly four of these numbers such that the total is twelve? 1 6 1 6 1 6 1 6 1 6 1 6
Prove that twice of ten is the same as twice of eleven.
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
