Abby, Bret, Carl, and Dana are seated in a row of four seats numbered \#$$1$$ to \#$$4$$. Joe looks at them and says:  ``Bret is next to Carl."  "Abby is between Bret and Carl."  However, each one of Joe's statements is false. Bret is actually sitting in seat \#$$3$$. Who is sitting in seat \#$$2$$? ． 
Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations
We know that Carl does not sit next to Bret, so he must sit in seat \#$$1$$. Since Abby is not between Bret and Carl, she must sit in seat \#$$4$$. Finally, Dana has to take the last seat available, which is \#$$2$$. 