What number when divided in half becomes zero?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

How can a man go eight days without sleep?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?