What can you catch but never throw?

I have teeth but i don't bite. Who Am I ?

Can you name some countries which do not have the alphabet 'A' in them?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

There is something which is always coming but never arrives?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

_ _ _ 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.

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

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

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