Can you divide the below-given shape into four equal and identical pieces?

You are a cab driver who pools passengers. You pick 3 people from a destination and drop 1 after an hour. 2 people climb aboard at the same time and you drop 3 at the next destination. After some time, you pick 2 passengers only to drop 1 after a short distance where 3 more passengers climb up the cab. You leave the rest of the passengers one by one to their destination and then come back home.

Can you tell the eye color of the cab driver?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Name a key which is hardest to turn.

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Find the next number in the sequence

5 12 24 36 ?

What can you see in the middle of March and April that you can never see in any other month?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Which is heavier: a ton of bricks or a ton of feathers?

A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?