If eleven plus two equals one, what does nine plus five equal?

Next Number in the Series,

5, 16, 49, 104, ?

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

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

A dying old man wants to divide his entire land between his only two sons. Since his only wish is to treat them as equal as both of them have been too good to him, he wants to divide his land equally between them. The problem is that the land is significantly irregular in shape and thus there is no choice of cutting them into two equal halves.

Can you help him divide the land in a manner that both of his sons will be happy?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.