Decode below three cipher riddles:

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

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

Using Only Five 5's and any mathematical operator make sum as 37

Why is the Hole below a Lock?

What does this Rebus Picture means ?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

What part of the chicken has the most feathers?