On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

Which Travels Faster? Solve below famous picture riddle:

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

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

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.

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?