Flags of countries (1)***/*****
Look at these flags:
Which of the following three flags belongs in the above group:
a) 
You can check your solutions here
New puzzles are published at least twice a month on Friday. Solutions are published after one or more weeks. You are welcome to remark on the difficulty level of the puzzles, discuss alternate solutions, and so on. Puzzles are rated on a scale of 1 to 5 stars.
This weeks puzzle comes from “Quark special”, a Japanese puzzle booklet or magazine that I once obtained through the late Nob Yoshigahara.
You can check your solutions here
New puzzles are published at least twice a month on Friday. Solutions are published after one or more weeks. You are welcome to remark on the difficulty level of the puzzles, discuss alternate solutions, and so on. Puzzles are rated on a scale of 1 to three stars.
Recently I downloaded a couple of matchstick puzzle apps on my android phone and on my ipad. Below you find an incomplete list of android apps with matchstick puzzles.
Here is a short list:
| Name | Publisher | Type of puzzles | Remarks |
| Matchstick puzzle | Uysal Mehmet | Digital Puzzles | Minimalistic interface. It baffled me at first. I didn’t see hints or solutions, but that doesn’t mean they aren’t hidden somewhere. |
| Puzzles with matches | Celtic Spear | Digital matches, triangles and squares | Well designed interface. Puzzles gradually increase in difficulty. Recommended! |
| Matchstick puzzles | Gamophonica | Squares | At level 6, I found a symmetrical solution is not recognized. Interface is clear. Same on levels 7 & 8, and probably on subsequent levels too. I informed the publisher and they responded quickly to my email, so I trust this problem will be resolved when you read this (written dec 2016). |
| Matches Puzzle Game | Bojan Klabjan | Squares, triangles, numerical digits | Original interface. Well designed. Recommended! |
| Matchstick Puzzle | Alt-y | Digital numbers | Both moving and 1 and 2 matchsticks. |
| Amazing matchsticks | Network Game&utility | ? | I skipped this one, as it asked 4 types of access which I deemed unnecessary |
| Matches Puzzle 2016 | Fitapp Inc | Digital numbers | Both 1 and 2 matches to be moved. If you are stuck, solutions can be bought with in-game money. |
| Math puzzle with sticks | LogiGames | Digital numbers | Beautiful interface, but I miss a clear indication of how many matches I have to move. Or maybe it is always just 1 match. |
I admit I’m not even halfway through the list.
Anyway, here are two puzzles.
Problem 1*/*****
Problem 1***/*****
You can check your solutions here and here
New puzzles are published at least twice a month on Friday. Solutions are published after one or more weeks. You are welcome to remark on the difficulty level of the puzzles, discuss alternate solutions, and so on. Puzzles are rated on a scale of 1 to 5 stars.
Ages**/*****
Ages**/*****
A man is 25 years old and his wife 23. He noticed that the sum of their ages (25+23=48) is exactly 4 times the sum of the digits of their ages. (2+5+2+3=12).
When will the sum of their ages be exactly 8 times the sum of the digits of their ages? And when will it be 9 times the sum of the digits?
You can check your solutions here
New puzzles are published at least twice a month on Friday. Solutions are published after one or more weeks. You are welcome to remark on the difficulty level of the puzzles, discuss alternate solutions, and so on. Puzzles are rated on a scale of 1 to 5 stars.
justpuzzles 