What does below chemistry rebus means?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

Be active and find the killer in the picture Riddle below.

Can you solve the maths in the below-given picture equation?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

Find out the missing number in the picture attached:

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

Which part of London exists in France as well ?