Random Puzzles 

Workings

Hint
Some might argue that this isn't a puzzle.

Answer
Half way – after which it would be running out!

Workings

Hint
You would probably never try this.

Answer
An umbrella.

Workings

Hint
How many bricks are laid in six hours?

Answer
1 hour.

Reasoning
How many bricks are laid in six hours?

In six hours, Kevin lays 1000 bricks, Freddie lays 2000 bricks, and Jimmy lays 3000 bricks.

So, in six hours, we have a total of 6000 bricks laid.

Which means that it will take one hour to lay 1000 bricks.

Workings

Hint
Think of the pages from 1-9, and then 10-99.

Answers
There are 147 pages. The number 3 appears 35 times.
Answer #1
For pages 1-9, there are 9 pages, which is 9 digits.

For pages 10-99, there are 90 pages, which is 180 digits.

This is a total so far of 189, therefore we require another 333 – 189 = 144 digits, which is another 144 ÷ 3 = 48 pages.

Taking us to 9 + 90 + 48 = 147 pages in total.

Answer #2
From page 1 to 147 we have 15 pages that end in 3:

   3, 13, 23, …, 143

We also have the ten pages that start with 30:

   30, 31, 32, …, 39

Plus the ten pages that start with 130:

   130, 131, 132, …, 139

For a total of 15 + 10 + 10 = 35 number 3's.