Answers to logic test problems
1. A coffin or casket
2. A. 14 this answer is based on the number of letters it requires to spell each number
3. Shortest sentence to include all the letters of the alphabet
4. Stand back to back
5. At that moment, the time and date could be written 12:34 5/6/78
6. I ought naught to owe for I ate nothing
7. The letter m
8. The umpire and the other team’s catcher
9. Too wise you are, too wise you be, I see you are too wise for me
10. Pour water from the second glass into the fifth glass
Logic answers from the thinking packet:
1. The two figures must pass at some point in time. You can graph it out. Graph the monk’s
progress on the first day (going up), then graph the second day (going down) the point where
the lines intersect is the time of day that he will pass at the same time of day.
2. Best solved with a matrix. Joan cannot be Ed’s wife because she is his sister. Ed weighs more
than the man married to Vickie and thus is not married to Vickie. Ed must be married to Sally.
There are additional clues. Because Fred lives in Ann Arbor and Joan lives in Detroit, they are
probably not married. Because Fred is not married to Joan or Sally, he must be married to
Vickie. Joan must be married to Ted.
3. The Hobbits and the orcs problem is best solved by dividing into smaller problems. You cannot
get caught up in only the movement from the right bank to the left bank. Solution: 1) Move 2
orcs R. to L. 2) move 1 orc L. to R. 3) move 2 orcs R. to L. 4) move 1 orc L. to R. 5) move 2 hobbits
R. to L. 6) move 1 orc, move I hobbit L. to R. 7) move 2 hobbits R. to L. 8) move 1 orc L. to R. 9)
move 2 orcs R. to L. 10) move 1 orc L. to R. 11) move 2 orcs R. to L.
4. A good way to solve the truthteller problem is to form a hypothesis. “ If the 1st person was a liar,
what would he have said?” he would have lied about himself and said he was a truthteller. Now,
hypothesize that he is a truthteller. He would have to tell the truth about himself and say he was
a truthteller. In testing these hypotheses, you learn that the first person must have said he was a
truthteller. The second man then must have been a truthteller and so was the first man since
the second man said so.