A prime number is a number which has no factors except 1 and itself.
Another Hint
Add the extra 5 minutes onto 11:00am.
Answer
This problem is best set out like this: $36
4 = answer
Answer
You already know how long the head is (50cm). Next, look at the clue which tells you how long the tail is.
Another hint
You need to find out how many times 4 (people) will go into $36.00
Another Hint
The tail is HALF as long as the head (50cm), right? So the tail MUST be 25cm long.
Answer
Take out the odd numbers. This will leave you with the even numbers only.
Answer
From 10:45am to 11:00am is 15 minutes.
Another hint
Suki MUST be first.
Another Hint
Factors of 16 and 20 are (these are all mixed up): 1, 16, 4, 5, 2, 8, 10
Answer
Zort is behind Lee and Ling-Ling
Answer