Hard Series

What is the next number in this series?

4,12,84,3612....




Similar Riddles

There are two arch enemies Messi and Ronaldo who hate each other to an extreme. One day both were going together and a Jeanie appeared in front of them. Jeanie grants 3 wishes to Ronaldo and one to Messi.

Messi replied smartly 'Give me twice whatever Ronaldo demands'.

Ronaldo asked his 1st wish 'Give me 10000 billion dollars. Soon Messi gets 2000 billion dollars.
Ronaldo asked for his 2nd wish 'Give me one mansion in every country in the world. Soon Messi gets two mansions in every country of the world?

What should be Ronaldo's third wish?

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In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

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He survived, How come?

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You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

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Replace the question mark with the correct number below.

Tree Problem

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There are hundred red gems and hundred blue gems. The blue gems are priceless while the red gems equal wastage. You have two sacks one labeled Heads and the other Tails. You have to distribute the gems as you want in the two sacks. Then a coin will be flipped and you will be asked to pick up a gem randomly from the corresponding sacks.

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Replace the question mark with the correct number.

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How many letters are in the alphabet?

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Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

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Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.