What is more useful when it is broken?

Solve the equation in the image by looking at the pattern closely.

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

There was a strange boy who was born before his father. How can this be possible?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?