Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

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.

What kind of storm is always in a rush?

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

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

Count the number of triangles in the picture below:

People make me, save me, change me, raise me. What am I?