What does this rebus picture identify?

When can we add 2 to 11 and get 1 as the correct answer?

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?

Five teams were competing in cricket where they faced each other exactly once. After the tournament, the following is the point table.

DareDevils 6
SuperKings 5
Royals 4
Sunrisers 2
Riders ?

How many points did Riders end up with?

Can you replace the question mark with the correct number in the below table sequence?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Decode below three cipher riddles:

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

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?