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

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

What Does this text mean:

important=important

How many words can a pen with half refill write?

How can one talk without saying a single word?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

By using all numbers, i.e. 123456789 and subtraction/addition, operators number 100 can be formed in many ways.
Example: 98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition use of the number 32 is a must. Then there are limited solutions.
One of such solution is: 9 - 8 + 76 + 54 - 32 + 1 = 100

Can you tell me any other solution?

What is so fragile that saying its name breaks it?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?