Give it food and it will live; give it water and it will die.

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

What is black when you buy it, red when you use it, and gray when you throw it away?

I want to fill my bucket using both cold and hot water.
I have two taps for both cold and hot water. The hot water tap fills the bucket in exact 6 hours and the cold water tap fills the bucket in exact 4 hours.
I turn both of them simultaneously but I forgot to turn off another tap which removes the water out of the bucket. This tap can empty the bucket in 12 hours.

How Long will it take to fill the bucket?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Why did Buffon take the goal with him after every Juventus match?

Find the number of squares in the below-given picture.

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

How many words can a pen with half refill write?