Grunger, that was the first time I'd ever used 'eggs is eggs' - I'd seen it recently in a book and decided I'd slip it in somewhere, sometime. I'd never thought of the 'eggs are eggs' being perhaps the better version. I have done some very quick research - online, Collins gave me 'eggs is eggs', my Brewer's gives the singular, then the plural version. I definitely prefer the 'is' - and saw that 'it has been suggested that this is an alteration of the logician's formula " x is x" . I'll stick with that one!
Glad you had a great time away, though I expect that ANY time away is wonderful right now!
The gambling game clue is distinctly odd, though I see that Chambers says it is a '...game, prizes being won by the first to cover...' I think my perception of 'gambling' is a little different.