Who is sitting between Liz and Jerry?

In a linear (single-row) seating arrangement, a person is said to sit ‘between’ two others only if they occupy the position immediately adjacent to both of them, with no one else in between. To find who sits between two named people, first fix everyone’s left-to-right order in the row, then read off the neighbours of each named person.

From the diagram, the row reads left to right: Ben, Jack, Tim, Liz, Sam, Jerry. Liz and Jerry are not next to each other — there is exactly one seat between them, and that seat is occupied by Sam.

Checking the immediate neighbours confirms this: the person to the left is Liz and the person to the right is Jerry, so both conditions of ‘between Liz and Jerry’ are satisfied only by Sam.

• Tim sits between Jack and Liz — adjacent to Liz but not to Jerry, so he does not fit the requirement.

• Liz is one of the two people named in the question itself, so she cannot be positioned between herself and another person.

• Ben sits at the far-left end of the row, several seats away from both Liz and Jerry, so he is not adjacent to either.