Please do NOT post your answer, but do say if you think you have solved the puzzle and how long it took. Solution on Monday.

A non-mathematical one this week.  What four-letter word is the same when it is read forwards, backwards and upside down?

I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for the Kindle (UK here and USA here) and on the iBookstore (UK here in the USA here). You can try 101 of the puzzles for free here.

1. Forwards, backwards and upside down, but not in a mirror.

Nor when partially obscured asymmetrically by tomato sauce at 37 degrees centigrade.

2. a cute puzzle. It took about 3 minutes going through alphabet.

3. found 4 english words and 5 dutch words. (7 in total, as 2 are “overlapping”). Used caps though.

1. Have to note, that I “mirrored” them upside down.

2. ivan says:

That case, you’ve not solved the puzzle as set.
I think the solution in English is unique, though one possible solution is an Italian brand of cycling clothing.

3. In that case I don’t know the answer.

4. I do not think it is unique – I have two English words, both definitely acceptable everyday words.

5. One Eyed Jack says:

I get 3 if you mirror, and 1 if you rotate.

6. Kooky, tooting boob fan. Yes in deed says:

Lord Manley,
Would you be kind enough to share your two words with us now?

4. Stewart says:

Two minutes but no thanks to the giveaway clues left in the comments.

1. Anonymous says:

Is it hard to prevent yourself reading the comments before attempting to solve it? I find it quite easy, but then I’m not mentally handicapped.

2. I Luv Spoilers says:

I agree with you anonymous
There are far too many people who post on these threads who are far too quick to take offence
Like you, I suspect they may have mental ( and self esteem) issues

5. Jethro says:

A couple of minutes to get this. Though can’t (yet?) find one that doesn’t rely on using capitals only.

6. Hugh Janus says:

Xylophone

7. Eddie says:

Got it after 3 mins.

8. Figured it fairly quick, based on using capitals – though I am not that awake as I didn’t realise the hint comment was a hint until after reading other comments

9. Derek says:

There is a word that does not require the use of capital letters – think solar bodies

1. Derek says:

You are correct. Please ignore my ill thought ramblings. (suns)

10. 強頭 says:

yeah, less than a minute from a non-native speaker

11. Piotr says:

About 30 seconds for a non-native speaker to find 2 such words, but with eyes on the keyboard and using capitals. Two more, you say? I would have to check the dictionary and that would not be a clean and fair solution.

12. Sari1967 says:

Got this weeks really quickly . Not even a second.

13. mittfh says:

Fairly easy – the upside down requirement severely limits the number of candidate letters, while the palindromic requirement further limits the number of valid combinations of letters. I reached the answer on the third combination I tried.

I wonder how many valid words there could be with differing numbers of letters?

14. Infophile says:

Figured out two different ones that work in capital letters – one if you consider “upside-down” to mean mirrored, another if you consider it to mean “rotated 180 degrees.”

1. I Luv says:

15. Kristian says:

16. Duncan says:

I got one straightaway, I’m keen to find out if there are any more answers though.

17. pete says:

Reminds me of an old gag, “What cheese is made backwards?”

18. Don Fillenworth says:

Got it.

19. Just Mike says:

If Richard will accept a certain proper name…then about one second.

20. Anonymous says:

I thought about it all morning the I got it just as I went on my midday break.

1. I have one which requires capitals and one which does not. See if you can find the one which does not.

2. Kooky, tooting boob fan. Yes in deed says:

Lord Manley

21. yeah fairly simple (unless I missed something)

22. XOOX, meaning Kiss hug hug kiss

23. Found one in about 30 seconds, but there may be others. It helped looking at the keyboard.

25. issahamati says:

Got it after 5 mins. but I was glad

26. Anonymous says:

Ages, are the comments used for Richard’s experiments? Does it work in comic sans? Should you read the comments before solving the puzzle and then be annoyed that the hints weren’t good enough? #love these puzzles.

27. Michael Scharf says:

took me 15 minutes — wrote a little (python) program and I can confirm there is only one word in english. I did it wrong in the manual attempt and my program showed no result till I realised I was missing a bit…

There are anyway only 20 possible words, if I am right 😉

28. Michael Scharf says:

it is actually 22 potential words….

29. Barry Goddard says:

Took me until NOON to solve this.

30. clessidravuota says:

Got one in half minute. And I am not British or American (I’m Italian). Not a really hard quiz…

31. zippy says:

When it says “when it is read … upside down” does it mean flipped around the mid axis, in which case letters like H and I are okay. Does it mean viewed in a mirror at the top or bottom of the word, in which letters like K are also okay? Does it mean rotated 180 degrees, in which case S is also okay?

32. I’ve got three: FROG, HARP and ECTOPLASM. I think they might not be the only ones.

1. Idiot Shavant says:

You forgot escarpment

33. Barry Goddard says:

@John Cartright

good ones!

I also thought of IONS, NINA and ONAN

34. Anonymous says:

High

This site uses Akismet to reduce spam. Learn how your comment data is processed.