The centre of the third figure is empty. What digit should fit inside?

What is the word or phrase below?
R | E | A | D

How can you leave a room with two legs and return with six legs?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

Optical Illusion Eye Test: You Have A Brain Like Computers If You Can Spot Two B's Among R's In 8 Seconds!

Can you Find and name the hidden bird in the picture below ?

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?

Prove that the below maths equation is true.

8 + 8 = 91

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?