I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

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

A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?

What occurs twice in a week, once in a year but never in a day?