What is at the end of a rainbow?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

What has 88 keys?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

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

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

Which English verb becomes past tense just by rearranging the letters?

_ _ _ 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.

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?