Before Mount Everest was discovered, what was the highest mountain in the world?

You need to cut a round cake into eight equal pieces with just 3 cuts. Can you do it?

Find out the missing number in the picture attached:

Those who excel at picture puzzles to find hidden objects often possess keen attention to detail, high IQ, and the ability to process visual information at lightning speed.

A bomb exploded in a room full of married couples and no one died. How?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

A mad serial killer kidnaps people and forces them to play the game of 2 pills with them, In this game, there are pills in the table and one of them is normal pill while the other one is deadly poisonous.
The victim will choose one pill and the killer will pick the other pill and both simultaneously will swallow the pill with water.
victim dies every time.

One day the serial killer kidnaps the Joseph and forces him to play the same game with him.

Joseph solves the mystery of the two pills and remains alive.

Explain?

Solve the riddle below:

If a Chicken says, 'All chickens are liars" is the chicken telling the truth?

What does the below rebus puzzle mean?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?