What is always in front of you but can’t be seen?

I have eight fingers and two thumbs but I do not live. What Am I?

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?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

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

Which five letter word can be added at the end of below word to form a
valid word?

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Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

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

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?

It belongs to you, but other people use it more than you do. What is it?