Replace the question mark with the correct number below.

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

What seven-letter word has hundreds of letters in it?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

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

How can you make number one disappear by adding something to it?

Keyboard words are not in alphabetical order, Why?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

There was a strange boy who was born before his father. How can this be possible?