| matter(noun, challenge, case, knot) |
| mire(noun, challenge, case, matter, knot) |
| mystery(noun, challenge, case, matter, knot) |
| nut(noun, challenge, case, matter, knot) |
| offshoot(noun, development, conclusion, consequence, corollary) |
| outcome(noun, development, conclusion, consequence, corollary) |
| outgrowth(noun, development, conclusion, consequence, corollary) |
| perplexer(noun, challenge, case, matter, knot) |
| pickle(noun, challenge, case, matter, knot) |
| pitfall(noun, challenge, case, matter, knot) |
| poser(noun, challenge, case, matter, knot) |
| precipitate(noun, development, conclusion, consequence, corollary) |
| predicament(noun, challenge, case, matter, knot) |
| problem(noun, challenge, case, matter, knot) |
| product(noun, development, conclusion, consequence, corollary) |
| puzzle(noun, challenge, case, matter, knot) |
| puzzlement(noun, challenge, case, matter, knot) |
| quagmire(noun, challenge, case, matter, knot) |
| quandary(noun, challenge, case, matter, knot) |
| question(noun, challenge, case, matter, knot) |