I can write cow in 13 letters.

Can You?

What occurs twice in a week, once in a year but never in a day?

Solve the counting riddle by identifying the number of triangles in the given picture.

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

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?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

I have no life, but I can die. What am I?

I have feet, but no legs. Which animal Am I?

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.