A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

What is so fragile that saying its name breaks it?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

It is always ahead of me yet I can never see it. What is it?

What runs around the whole yard without moving?

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

_ _ _ IE _ _
_ _ _ IE _
_ _ IE _ _
_ _ IE _
_ _ _ _ IE

Like you see, some letters have gone missing from these words that contain the IE pair at some or the other place. The letters that will be used to fill the blanks are given below. Use them and form meaningful words. Can you do that?

A, C, D, F, H, K, L, M, N, N, O, R, R, S, S, S, T, T, Y and Y.