What does below pictogram mean?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

John is a strange liar.

He lies on six days of the week, but on the seventh day, he always tells the truth.

He made the following statements on three successive days:

Day 1: "I lie on Monday and Tuesday."
Day 2: "Today, it"s Thursday, Saturday, or Sunday."
Day 3: "I lie on Wednesday and Friday."

On which day does John tell the truth?

Can you identify the famous TV character from the rebus below?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

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?

Count the number of triangles in the below picture?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Who can jump higher than a Mountain?