As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

What does Alexander the Great and Winnie the Pooh have in common?

Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Jack and Joseph are well-known golf rivals. One Day during a match, they were level at a score of 30. Jack hit a bad shot and Joseph added 10 to his score. Joseph then hit an awesome shot and he won the game.

How ?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?