What runs around the whole yard without moving?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

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?

What two things can you never eat for breakfast?

I taste better than I can smell. Who am I?

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

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

People put me on the table and cut me but do not eat me. What am I?

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?

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?