If you say my name, I will no longer exist. What am I?
Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?
I make two people out of one. What am I?
Twice ten are six of us, Six are but three of us, Nine are but four of us; What can we possibly be? Would you know more of us? Twelve are but six of us, Five are but four, do you see? What are we?
What does the following BrainBat signifies? ABCDEFGHIJKLMNOPQRSTUVWYZ QQQQQQQQQQQQQQQQQQQQQQQQQ.
When my father was 31 I was 8. Now he is twice as old as me. How old am I?
Before Mount Everest was discovered, what was the highest mountain in the world?
What have one eye but still cannot see?
I have a clock(12-hour format) and both the needles of the clock overlap at 12:00. After how much time, they will overlap again?
How can you take 2 from 5 and leave 4?
Which is the correct shadow of the bird?
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