BrainBashers - Random Puzzles

Puzzle 13

Three builders are laying a brick wall.

Freddie can lay 1,000 bricks in three hours, Jimmy can lay 1,000 bricks in two hours and Kevin can lay 1,000 bricks in six hours.

How long will it take Freddie, Jimmy, and Kevin to lay 1,000 bricks if they all work together?

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Puzzle 14

Starting in the bottom left corner and moving either up or right, adding up the numbers along the way, what is the largest sum that can be made?

Note: this puzzle is not interactive, and the numbers cannot be clicked.

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Puzzle 15

During a recent expedition, three intrepid adventurers were left stranded in the middle of the desert with only a crate full of apples.

During the night, Alex woke up and decided to hide some of the apples and hid a third, then promptly fell asleep again.

Billie woke up shortly after and also decided to hide a third of the remaining apples and then also dozed back to sleep.

Finally, Charlie woke up and seeing the others were asleep, took a third of what was left.

Of course, none of the adventurers knew of the other's antics, so, in the morning, they shared the remaining apples, each receiving sixteen. How many apples were in the crate originally?

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Puzzle 16

If Malcolm, Laura, John, Alan, Brenda and Kevin like chocolate …

… and Norman, Steve, Thomas, Zebedee do not …

… does Peter like chocolate?

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