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.

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Can you name an animal whose killing cannot be performed without spilling your own blood?

What has many keys but can’t open a single lock?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

Find the missing letter in the last circle logically in the given below picture.

Solve the mathematical equation in the picture below.

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?