BrainBashers - Random Puzzles

Puzzle 1

What is the 10^th prime number?

2, 3, 5, 7, …

www.brainbashers.com /puzzle/zhgx share

Puzzle 2

Imagine a bottle recycling skip, empty other than one lonely bottle.

Every hour, on the hour, people come and put bottles into the skip.

The first hour, at noon, one person came and put a bottle in.

One hour later, two people each placed a bottle into the skip.

An hour later, four people each placed a bottle into the skip.

This doubling of people continued until 11pm, when the skip was finally full.

When was the skip exactly half full?

workings hint answer print

www.brainbashers.com /puzzle/zfkx share

Puzzle 3

Which of the shapes is identical to the first one?

There might be more than one.

workings hint answer print

www.brainbashers.com /puzzle/znmv share

Puzzle 4

At last week's Girl Guide's picnic, four girls were tucking into their packed lunches. Jane had muffins but Denise didn't have orange juice. The girl who had blackcurrant juice also had scones and Frankie had blueberry juice. The girl who had cake also had strawberry juice, whereas Alice didn't have the strawberry juice nor toast. Can you work out who had which drink and which dessert?

workings hint answer print