Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

If you say my name, I will no longer exist. What am I?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

Why is a river so rich ?

How many letters are in the alphabet?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?