Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Find out the missing number in the picture attached:

The more of this there is, the less you see. What is it?

In the Wild West, you are challenged into a death match by two bounty hunters nicknamed Golden Revolver (GR) and Killer Boots (KB). You accept the challenge. None of you want to waste any of the bullet and so a certain rules are laid down:

1) All of you will shoot in a given order till the last man standing.
2) Each of you shoots only once upon his turn.
3) If any one of you is injured, the other two will finish him off with an iron rod.
4) The worst shooter of all (which is you) shoots first and the best one shoots at the last.

Now, how will you plan things if you know that you hit every third shot of yours, KB hits every second shot and GR hits every shot ?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

They are three errirs in this question. Can you find them?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.