What is so fragile that saying its name breaks it?

What goes up but never comes down?

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

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

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

What English word has three consecutive double letters?

Which five letter word can be added at the end of below word to form a
valid word?

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I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

_ _ _ 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.

The more it dries, the wetter it becomes. Can you tell what it is?