What has to be broken before you can use it?

Optical Illusion: People with hawk eyes can spot a different car in 5 seconds. Can you? Test your vision now!

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

It belongs to you, but other people use it more than you do. What is it?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Prove that the below maths equation is true.

8 + 8 = 91

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?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

When can we add 2 to 11 and get 1 as the correct answer?