A man dies of old age on his 25 birthday. How is this possible?

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

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

When it is alive we sing, when it is dead we clap our hands. What is it?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

A man was convicted of a minor offence in Akbar court. Akbar decided to give him a chance. He asked him to give a statement. If the statement is true, he will be killed by lions and if it is false, he will be killed by trampling of wild elephants.

The convicted person requested help from Birbal and since the crime was not a big one, Birbal decided to help him. Whatever Birbal suggested impressed Kabir and he let the convicted person go.

What did Birbal suggest to the person?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.