Decode below three cipher riddles:

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

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?

In a school, 280 students studied chemistry, 254 students studied physics and 280 students studied biology.

97 students studied chemistry as well as physics, 138 students studied physics as well as biology and 152 students studied chemistry as well as biology.

73 students studied all the three branches.

Can you find out the total number of students?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

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

What do you think with the below Picture ?

A man dies of old age on his 25 birthday. How is this possible?

Which alphabet letter is a question?

What does this below rebus puzzle mean?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?