complication
determine
botheration
box
break
can of worms
clarify
clear up
construe
count
crack
crunch
decide
decipher
decode
difficulty
dilemma
dirty
disagreement
disentangle
dispute
disputed point
divine
do
doubt
elucidate
enlighten
explain
fathom
fix
get
grunge
grungy
have
headache
hit
hitch
hot water
icon
illuminate
illustration
imprint
ink
iron out
issue
lick
mess
obstacle
pickle
point at issue
predicament
problem
puzzle
quandary
question
reason
red
resolved
rubber
scrape
settle
sign
solution
solved
squeeze
stamp
symbol
trouble
unfold
unlock
unravel
work out
worriment