If you say my name, I will no longer exist. What am I?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

What jumps when it walks and sits when it stands?

A father's child, a mother's child, yet no one's son.

Who am I?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

Buy me, smell me or deliver me, I do not change.

Who am I?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

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?