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?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

There are forty elephants and they have forty-fore heads. How can this be possible?

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

A Car driver was heading down a street in Washington. He went right past a stop sign without stopping, he turned left where there was a 'no left turn' sign and he went the wrong way on a one-way street. Then he went on the right side of the road past a cop car. Still, he didn't break any traffic laws. Why not?

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.

The answer I give is yes, but what I mean is no. What was the question?

Can you find the thief by just looking at the picture below?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

Solve the alphametic puzzle by replacing the alphabet with the number.

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