Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

Can you find out who is the kidnapper in below Picture and why, Explain ?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

Complete the table series riddle by finding the number that can replace "??".

In the four images below, can you find the odd one out?

What does below Rebus mean ?

esgg sgeg gegs gsge

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?