What English word has three consecutive double letters?

What will you call your mother's brother's brother-in-law?

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

What is it?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

How can you leave a room with two legs and return with six legs?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

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?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?