What is always in front of you but can’t be seen?

What is at the end of a rainbow?

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

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

What word is pronounced the same if you take away four of its five 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.

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

What has 88 keys?

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?