Or search by topic
Syed (Foxford School and Community College, Coventry) has supplied a diagram of a solution:
Joshua (Brooklands Primary, Suffolk) explained his thinking well:
From clue 1, two girls sit next to each other, and from clue 4, Carol did not sit beside Annie or Ellen - so Ellen and Annie must sit next to each other. From clue 5, Felix sat opposite Ellen.
So far
From clue 2, David sat opposite Bert, so I put them on the two ends of the table. Which means Carol sits next to Felix - which fits in with clue 3 (Felix sat to Carol's left).
Final answer:
Samantha (Nanyang Primary School, Singapore) realised that Bert and David could swap seats and still fit all the clues.
Josh (Ampthill, Bedfordshire) gives an excellent description:
David is sat at the left end of the table and Bert is sat facing him at the right end.Sally (Tattingstone Primary, UK) thought about the problem in a similar way to Josh.
Jason (Lark Rise Lower School, UK) was the only one to send in a different, but similar, seating arrangement:
Carol | Felix | ||
David | Bert | ||
Annie | Ellen |