Solve the equation in the image by looking at the pattern closely.

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

Which is faster, Heat or Cold ? Explain.

Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

Readers with excellent focus can find three differences between the camping scene pictures in 16 seconds. Can you? Test your eye power now!

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

What is both possible and impossible at the same time?