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?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Which digit occurred maximum times between the number 1 and 1000?

Why do you find that most of the buildings are deprived of the 13th floor?

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

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

Which fur should we be getting from the Lion?