If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

What does it mean?

In the given picture, in how many ways can you read the word "Tiger"?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

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?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?