Decode below three cipher riddles:

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

What does does this rebus picture means ?

I am quite hot but become too cold if you remove the first two letters. What am I?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

What is the next number in the series?

15 29 56 108 208 ?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

Which tank will fill first?

What is the riddle which can be asked all day with a different correct answer each time.

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

John was writing his first book. After saving the document, he locked his laptop with a password and mentioned some phrases for the hint box.

A friend of his tried opening his laptop but found out that it was password protected. Following is the hint that appeared.
1 mobile 3 books 2 roars 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches.

Can you help him in cracking the password?