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?

What has to be broken before you can use it?

I have no life, but I can die. What am I?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

How can I get the answer 24 by only using the numbers 8,8,3,3?

You can use the main signs add, subtract multiply and divide.

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?