# Knights and Knaves: Quiz

Question 1: A large class of elementary logical puzzles can be solved using the laws of Boolean algebra and logic ________.
Propositional calculusLogical connectiveTruth tableValidity

Question 2: On a fictional island, all inhabitants are either ________, who always tell the truth, or knaves, who always lie.
KnightCountEmperorPrince

Question 3: A further complication is that the inhabitants may answer ________ in their own language, and the visitor knows that "bal" and "da" mean "yes" and "no" but does not know which is which.
Chinese languageYes and noYes-no questionEcho answer

Question 4: Knights and Knaves is a type of logic puzzle devised by ________.

Question 5: This version of the puzzle was further popularised by a scene in the 1986 fantasy film, Labyrinth, in which Sarah (________) finds herself faced with two doors each guarded by a two-headed knight.
Jennifer ConnellyKate WinsletCate BlanchettRenée Zellweger

Question 6: These types of puzzles were a major inspiration for what has become known as '________'.
Knights and KnavesRaymond SmullyanThe Hardest Logic Puzzle EverGeorge Boolos