I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?

Count the Triangle in the figure given below:

Can you make four (4) nines (9) equal 100?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?