Decode the below four famous ciphers:

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

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

Can you count the number of blocks in the picture below?

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

I know a nine-letter word having only one vowel.
Do you ?

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

I am an odd number. Take away a letter and I become even. What number am I?