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Puzzle 1 


GreenJack Round #3all logic puzzles

You find yourself playing a game of GreenJack with your friend.

It is played with a deck of only 16 cards, divided into 4 suits:

   Red, Blue, Orange, and Green.

There are four cards in each suit:

   Ace, King, Queen, and Jack.

All Aces outrank all Kings, which outrank all Queens, which outrank all Jacks, except for the Green Jack, which outranks every other card.

If two cards have the same face value, then Red outranks Blue, which outranks Orange, which outranks Green, again except for the Green Jack, which outranks everything.

Here's how the game is played: you are dealt one card face up, and your friend is dealt one card face down. Your friend then makes some true statements, and you have to work out who has the higher card, you or your friend. It's that simple!

Round 3:
You are dealt the Red Queen and your friend makes three statements:

My card could lose to a Blue card.
Knowing this, if I am more likely to have an Ace or a King than a Queen or a Jack, then I have an Orange card. Otherwise, I don't.
Given all of the information you now know, if I am more likely to have a Jack than an Ace, then I actually have a King. Otherwise, I don't.
Who has the higher card, you or your friend?

Puzzle Copyright © E.J. Shamblen

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Puzzle 2 


Yesterday I was asked to buy some stamps.

In the land of BrainBashers, stamps are available in denominations of 4p, 5p, 7p, 12p, and 19p (just the five different values).

For three denominations of stamps, I was asked to buy six of each. For the other two denominations. I was asked to buy ten of each.

Unfortunately, I forgot which I was supposed to buy six of, and which to buy ten of!

Luckily I had been given the exact money required to buy the stamps, £3.50, so the shopkeeper was able to work out the stamps I needed.

Which stamps did I have to buy?

Puzzle Copyright © Kevin Stone

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Puzzle 3 


How many squares of any size on this chessboard do not contain a rook?

Rooks On B3, C7, F5

Puzzle Copyright © Kevin Stone

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Puzzle 4 


How many people must be at a party before you are likely to have two having the same birthday (but not necessarily the same year)?

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