What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Solve the maths equation in the picture below by placing the numbers 1 through 9 into the boxes so that all the 3 equations are correct.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

Find the next number in the series

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

A woman lives in a skyscraper thirty-six floors high and is served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?