1. Correct the following equation so that it makes sense by moving the given four digits but without introducing any additional mathematical symbols. 79 = 24

2. The number of girls who wear a watch is double the number who don't. But the number of boys who do not wear a watch is double the number who do. The number of girls in my class is double the number of boys Can you tell me the number I teach? Here's a clue: More than 20; below 32!

3. How much dirt would be in a hole 1.5 metre deep and 1.5 metre wide? The hole has been dug with a square edged shovel?

4. When asked how old she was, Mary replied, "In two years I will be twice as old as I was five years ago." How old is she?

5. How quickly can you find out what is unusual about this paragraph? It looks so ordinary that you would think that nothing was wrong with it at all and, in fact, nothing is. But it is unusual. Why? If you study it and think about it you may find out, but I am not going to assist you in any way.

6. Answers Watches = 27 in total (has to be a multiple of 9) None – its a hole Mary will be 12. The paragraph doesn’t include the letter e which is the most commonly used letter in the English alphabet Algebra 79 = 24 becomes 7 2 = 49