What does this rebus riddle means ?

The husband and wife were jogging in the morning. To match every two steps of the husband, the wife required three steps. If Both of them start with the here right foot. After how many steps do their left foot be together?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

What do you get if you add 2 to 100 four times?

Find the last number in the series below:

voN luJ yaM raM ---

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

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.