I have an eye but still cannot see.

Who am I?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

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?

Find the next number in the series below

21 32 54 87 131 ?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

I have branches, but no fruit, trunk or leaves. What am I?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?