Can you count the number of triangles in the picture below?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

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 ?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

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

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

No matter how little or how much you use me, you change me every month. What am I?

What's the only room from which no one can enter or leave