Two are conjoined twins.<br />
I thought of grandfather/father/son too, but surely that'd make 3 sons?
The grandfather would obviously be a son of his parents, (grandfather is 1 son)
Grandfather would have bought along his son (2 sons so far, plus the grandfather being a father)
And the grandfather's grandson (who would be the third son, plus the grandson's father making up the second father)
I think that's what you said anyway - wasn't it? I got confused, it's difficult for me to understand fully without a diagram :p
Oh yeah, that escaped my notice! Makes more sense now. I don't know why they had to be related in my head.
any answer could be correct...<br />
grand father, father and son<br />
or they threw back an undersized one...OR they had a fire and cooked and ate one..OR they gave one away.
A grandfather his son and his sons' son. Two sons and two fathers. Three people.
grandfather, his son and the fathers son