A father's child, a mother's child, yet no one's son.

Who am I?

Find the next number in the series.
1 10 24 43 67 ?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

How can I get the answer 24 by only using the numbers 8,8,3,3?

You can use the main signs add, subtract multiply and divide.

Which part of London exists in France as well ?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

What has lots of eyes, but can’t see?

Solve the puzzle by telling what does below picture means.

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.