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 is full of holes but still holds water?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

What demands an answer, but asks no questions

John is on an island and there are three crates of fruit that have washed up in front of him. One crate contains only apples. One crate contains only oranges. The other crate contains both apples and oranges.

Each crate is labelled. One reads 'apples', one reads 'oranges', and one reads 'apples and oranges'. He know that NONE of the crates have been labeled correctly - they are all wrong.

If he can only take out and look at just one of the pieces of fruit from just one of the crates, how can he label all of the crates correctly?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

Replace the question mark in the picture below.

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?