You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What is so fragile that saying its name breaks it?

I am quite hot but become too cold if you remove the first two letters. What am I?

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

I have Rs.50 and I spend it in the way as below.

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?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

Imagine you are in a room with no windows or doors. How will you get out?

Before Mount Everest was discovered, what was the highest mountain in the world?

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?