Using eight eights and addition only, can you make 1000?

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.

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?

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

How can one talk without saying a single word?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

What work can one never finish?

Can it be possible to build a house that has all its four walls facing towards the South?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

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?