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

O T T F F S S ?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

Which point will the car reach to go out?

What occurs twice in a week, once in a year but never in a day?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Why do you find that most of the buildings are deprived of the 13th floor?

These types of puzzles are known as charades. What you have to do is find two words that are referred to in the first stanza and the second stanza and put them together to form the third word in the third stanza.

Just for example, if my first refers to 'off' and my second refers to 'ice', then my whole will be office.

My first is present - future's past -
A time in which your lot is cast.

My second is my first of space
Defining people's present place.

My whole describes a lack of site -
A place without length, breadth, or height.

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

What breaks yet never falls, and what falls yet never breaks?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10