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.

What begins with T, ends with T, and has T in it?

How can you tell a raw egg from a hard-boiled egg?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Before Mount Everest was discovered, what was the highest mountain in the world?

Can you fill the blank with the correct number?

6 30 870 756030 _____

Can you replace the question mark with the correct number in the below table sequence?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

500 women soldiers are arranged in an array of ten rows and fifty columns in accordance with their respective heights. Now, the tallest woman from each row is asked to move out in the front. From them, the shortest one is labelled as Alpha. They are then asked to resume their original position.

Now, the shortest woman in each column is asked to come out in front. The tallest among them is labelled as Beta.

Can you find out if Alpha will be taller or Beta?