Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

What can go through glass without breaking it?

Can you solve this picture maths equation?

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?

What kind of tree can you carry in your hand?

Where do you go to learn how to make ice cream?

Which word does the below Plexor means ?

Different lights make me strange by changing me into different sizes. What am I?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).