In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

What work can one never finish?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

What does below Rebus say?

XLR8

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

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

You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
Door B: Its behind A or D
Door C: It's in here
Door D: It's not in here

Your psychic powers have told you three of the inscriptions are false, and one is true. Behind which door will you find the spirit?

By moving just one matchstick, you need to make the below statement true. Can you do it?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?