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

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

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

What English word has three consecutive double 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.

If Rajina's daughter is my daughter's mom, who am I to Rajina?

What goes up but never comes down?

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

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

I look at you, you look at me, I raise my right, you raise your left. What am I?