Be active and find the killer in the picture Riddle below.

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

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

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

What seven-letter word has hundreds of letters in it?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Can you fill the blank with the correct number?

6 30 870 756030 _____

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?