Since I was travelled 50 miles in the one hour, this must have used 2 gallons (at 25 miles per gallon).

So I must have lost the other 8 gallons through the hole.

Puzzle 109

What is the sum of all of the numbers from 1 to 1000?

[Ref: ZONR]

Hint: Add the first number to the last - does this help?

Answer: 500,500.

It's easiest to see that the first and last number are 1 and 1000, which add to 1001.

The next two numbers we can add are 2 and 999, which add to 1001.

The next two numbers to add are 3 and 998, which add to 1001.

We can keep doing this 500 times, and in each case they add to 1001.

And 500 x 1001 = 500,500.

Puzzle 110

Using the BrainTracker grid below, how many words can you find? Each word must contain the central P and no letter can be used twice, however, the letters do not have to be connected. Proper nouns are not allowed, however, plurals are. Can you find the nine letter word?