A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

A man is trapped in a room. The room has only two possible exits doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters. Through the second door there is a fire-breathing dragon. How does the man escape?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Bay of Bengal is in which state?

What does below Rebus mean ?

esgg sgeg gegs gsge

Our product and our sum always give the same answer. Who are we?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

Can you find out the remainder when 3^300 is divided by 5?