Find The Odd One Out

1. FLOW
2. SNIP
3. TRAP
4. DRAW
5. BACK

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

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

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?

Who has married many women but was never married?

Can you solve the below algebraic mathematical equation?

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

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?