Can you name some countries which do not have the alphabet 'A' in them?
Which flower has two lips?
Find the smallest sentence with all the English alphabet.
Can you decipher the below rebus? PBLUESAISNUERSES
Forwards I am heavy, backward I am not. What am I?
Why do you find that most of the buildings are deprived of the 13th floor?
You need to move three matchsticks to form three squares. Can you do it?
People put me on the table and cut me but do not eat me. What am I?
What Time Should the last watch show in the below figure?
Take one out and scratch my head, I am now black but once was red. What am I?
What do you see in the given picture?
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