You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

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

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

I travel all around the world but always stay in the corner. What am I?

What can go up a chimney down, but can’t go down a chimney up?

A man dies of old age on his 25 birthday. How is this possible?