I am quite hot but become too cold if you remove the first two letters. What am I?

Prove that the below maths equation is true.

8 + 8 = 91

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

At a bar, three friends, Mr Green, Mr Red and Mr Blue, were having a drink. One man was wearing a red suit; one a green suit; and the other a blue suit. 'Have you noticed,' said the man in the blue suit, 'that although our suits have colours corresponding to our names, not one of us is wearing a suit that matches our own names?' Mr Red looked at the other two and said, 'You're absolutely correct. What colour suit is each man wearing?

What came first, the chicken or the egg?

Why is the Hole below a Lock?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

I look at you, you look at me I raise my right, you raise your left. What am I?

Why is 6 afraid of 7?