Eric, Arjun, Hema, Tom and Tim do a treasure hunt with five clues to find.
Eric got all the clues right but finished last. Tim got back second,
but got two clues wrong. Hema got more questions right than Tim, but
finished after him. Arjun wasn’t faster than Tim. Tom was faster
than Hema, and only got one question wrong. If these statements are true,
only one of the sentences below cannot be true. Which one?

Only one of the sentences below cannot
be true. Find which one?

A Tom got back first.
B Hema was faster than Eric.
C Tom was faster than Arjun.
D Tom came third.
E Tim scored the least points