Without using a calculator or a computer, can you show that $e^{\pi} - \pi < 20$ ?

What 6 letter word has the same properties? The whole makes harm, 5 letters makes me displeasured, 4 letters makes me a national greenhouse, 3 letters, makes me a wooden canvas. 2 letters is in a medical facility, Lastly, for 1 letter, you may wanna request this.

So i came up with an idea while watching a video explaining about the Reverse, add system. This is how mine works: garnish singing innings signings gigging igging gig igg If you don't understand: You reverse your word and add the original word and the reversed word together. Now find an anagra...

Wormeus lives in a labyrinth containing lots of apples. His main ambition in life is to eat as many apples as possible but his nemesis, the evil Pink Lady Stickotaur, has other ideas – if you pardon the terrible cliché! Wormeus can move up, right, left or down one space and so can the Pink Lady S...

Can you give a good rational approximation of $$\sqrt[3]2 \times \sqrt[4]2$$ without doing any significant maths? Hint: Attribution: Mine.

A swarm of dice bring nectar back to the hive from a domino garden. I just finished adding a new puzzle race game to Donimoes, my collection of domino puzzles and games, so I thought I would post a few bonus problems here. The game is Bee Donimoes, and the bees are dice flying back to the queen b...