I’m tall when I’m young, and I’m short when I’m old. What am I?
Rearrange the letters in "new door" to make one word.
What is black when you buy it, red when you use it, and gray when you throw it away?
As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?
You knock a Table over in the library, and suddenly 20 eyes are looking at you.
A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?
A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?
Replace the question mark with the correct number.
2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?
What has a ring but no finger?
Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?
A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.
The mules is perfectly normal. So how come this be true ?
In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.
