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.

In which direction should the missing arrow point?

By using 'because' continuously three times, can you make an English statement ?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?

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

When it is alive we sing, when it is dead we clap our hands. What is it?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

It is always ahead of me yet I can never see it. What is it?