What is harder to catch the faster you run?

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 ?

Take away the whole and some still remain. What is it?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

I shave every day, but my beard stays the same. What am I?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

What building has the most stories?

I can write cow in 13 letters.

Can You?

I travel all around the world but always stay in the corner. What am I?