There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

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?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What is the next number in this series?

4,12,84,3612....

Find the next number in the series below.

6 18 270 72090 ?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

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

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?