A man is lying dead in a field where no one is around. His head is split open and his legs are disfigured. Near to him, there is an unopened package. No living organism can be found anywhere at the crime scene.

How did he die?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

I am working in a bus company. The company recently went under expansion and therefore there was not enough room for all the buses. As a result, twelve buses had to be stored outside.

If the company decides to expand the garage space by forty percent, enough space to accommodate the current buses will be created leaving enough space for twelve more buses if the need arises in future.

Can you calculate the number of buses that the company owns at present?

What has many teeth, but cannot bite?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

In Greek mythology, the Sphinx sat outside of Thebes and asked this riddle of all travellers who passed by. If the traveller failed to solve the riddle, then the Sphinx killed him/her. And if the traveller answered the riddle correctly, then the Sphinx would destroy herself. The riddle:

What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?

Oedipus solved the riddle, and the Sphinx destroyed herself.