Перевидите нормально, ! john, twelve years old, is three times as old as his brother. how old will john be when he is twice as old as his brother?

Джону 12 лет, на три года старше его брата. Сколько лет будет Джону когда он дважды старше брата

Этот текст точно правильно написан?Перевод все равно как-то ,,нормальным" не получается. Джон, двенадцать лет, в три раза старше, как и его брат. Как старый Джон будет, когда он в два раза старше своего брата?

I didn't find anything interesting. - Did you find anything interesting?
Bob doesn't know anybody here. - Does Bob know anybody here?
There aren't any shops here. - Are there any shops here? 
There are no books on the desks. - Are there any books on the desk?
We haven't got any bread. - Have you got any bread?
They had nothing to eat during the war. - Did they have anything to eat?
I can't see my glasses anywhere. - Can you see my glasses anywhere?
You can't go anywhere you like. - Can I go anywhere for a walk?
Nobody could help us.- Could anybody help you?
You didn't understand anything. - Did you understand anything?

I didn't find anything interesting. - Did you find anything interesting?
Bob doesn't know anybody here. - Does Bob know anybody here?
There aren't any shops here. - Are there any shops here? 
There are no books on the desks. - Are there any books on the desk?
We haven't got any bread. - Have you got any bread?
They had nothing to eat during the war. - Did they have anything to eat?
I can't see my glasses anywhere. - Can you see my glasses anywhere?
You can't go anywhere you like. - Can I go anywhere for a walk?
Nobody could help us.- Could anybody help you?
You didn't understand anything. - Did you understand anything?