In the group stage of the World Cup, teams compete within eight groups of four teams each. Each group plays a round-robin tournament, in which each team plays three matches, one against each other team in the same group. This means that a total of six matches are played within a group. Points a...

If you have a very large but finite number of equilateral triangels(of any/all sizes) is it then possible to construct an isosceles triangle? (By isosceles I mean a non-euqilateral isosceles triangle). Can you prove/disprove it?

My buddy shared an image with me that has the following characters (above which are written interpretations my friend came up with). I have no idea what it says, but we're interested in finding out (hopefully not weird or offensive, but either way). It's a bit difficult to make out the letters, b...

There is a famous classical geometry puzzle about the angles formed by integer coordinates: What is the sum of angle A and B in the following image? Do not use any advanced mathematics such as trigonometric formulas or complex numbers. with an elegant answer using pure geometry (spoiler-ed for...

Max's Dad Kevin loves puzzles. He has a gift for his son but wants him to guess when he will give him the gift. Kevin leaves some messages. Could you help Max in finding when he would receive his gift? Message 1 Message 2 Message 3

Across 6. A sign that it's time to stop payment: Serious warning signal (9,4) 8. Nonconformist man is in good shape (6) 9. Sorriest broken component (8) 10. Child keeping King softly in grip (5,3) 12. Dessert and wine brought back to a king and a queen? (6) 14. DJ's Maui resort shows faith (7) 1...

Anita, Becky, Claire and Donna went to visit Emmy on Saturday. The times were as follows: Anita visited at 8'00, Becky at 9'00, Claire at 10'00, and Donna at 11'00. At least one woman visited Emmy between Anita and Becky. Anita did not visit Emmy before both Claire and Donna. Claire did not v...

This puzzle is in the spirit of the [What is a Word/Phrase™][1] series started by [JLee][2] with a special brand of [Phrase™][3] and [Word™][4] puzzles. If a word conforms to a special rule, I call it a Date word™ word. Here is a list of Date™ and not Date™ words: Date word™,not-date word™ SODA,...

You can catch me and hold me but only for a while Tell someone I am bad and wipe out his smile I can be saved, I can be wasted I can be analyzed, I can be tested I can be taken, rarely seen and can be heard I can be short, occasionally lost, sometimes drawn but never colored. Who am I? One word.

Many word-property puzzles are based on the series started by @JLee, and through carefully copying templates by the community, both have a nicely looking LaTeX table and a CSV version. The latter is useful because you somehow can't copy/paste the content of the LaTeX table. I have no idea what sc...