It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

What is at the end of a rainbow?

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

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_ _ _ 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?

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

What English word has three consecutive double letters?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

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

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?