What does does this rebus picture means ?

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?

During an interview, the interviewer ordered hot coffee for the candidate to relieve the stress. The coffee was kept before him. After a minute, the interviewer asked him, 'What is before you?' He replied 'Tea'.

The candidate was selected immediately. Why?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

What is the word or phrase below?
R | E | A | D

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

What Adam and Eve do not have but the rest of the people have?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211