After you solved the goblins' puzzle, you decided to go home. But the king of the goblins returned, now at your back door! 'You have outsmarted me, but NOT THIS TIME!!! I am gonna make you die, SAAAY GOODBYYYYE!!!!' 'No!!!!!!!!!!!!!!!' 'I'll give you ONE LAST CHANCE TO LIVE. (hands you pocket sci...

You are in a Magic: The Gathering commander game. It is now your first main phase and you control these permanents: One Miirym, Sentinel Wyrm exactly $n$ separate non-legendary permanents like Parallel Lives, each having as full rules text "If an effect would create one or more tokens under your...

Usual format: each ellipse represents an as-yet-unknown category. Each tile belongs in at least one ellipse - but which ones where and why?

Yet again, you were stranded in a desert island, this time with 9 trolls. Each troll shares a langauge with words for yes and no, the four cardinal directions, a number system between base 10 and 60 (but you don't know precisely what) and the four basic operations (+ - * /). You are handed a piec...

The Logic Puzzle I have found a catch in the solution of this logic puzzle. Provided that you are not allowed to give the prisoners any new information, the statement "at least 99 of you have green eyes" does give them new information. To give 'new information' can be defined as when the statemen...

You are taking out candies one by one from a jar that has 10 red candies, 20 blue candies, and 30 green candies in it. What is the probability that there are at least 1 blue candy and 1 green candy left in the jar when you have taken out all the red candies? My approach: I say let Tr = last red ...

I see a similar question in Russian roulette. Now if instead of two bullets being placed side by side, two bullets are randomly put in the chamber. Your opponent played the first and he was alive after the first trigger pull. You are given the option whether to spin the barrel. Should you spin th...