to guess; to conjecture; to surmise

to guess; to conjecture; to suppose; (math.) conjecture; hypothesis

to guess correctly; to figure out the right answer

to suspect; to have misgivings; suspicious; misgivings

to answer a riddle; to guess (i.e. form an opinion without much evidence)

to make a wild guess; blind guess

finger-guessing game; rock-paper-scissors game; morra

suspicion

unsuspecting; innocent and without apprehension

to surmise; to conjecture

to be suspicious and jealous of

drinking game where one has to guess the number of small objects in the other player's closed hand

to guess correctly

to hazard a guess

to try to predict the outcome of an event (for betting on sports results or for fun etc)

to be unable to guess or make out

to have sufficient insight to perceive; to suspect that ...

to answer a riddle; to guess (i.e. form an opinion without much evidence)

innocent playmates

the Goldbach conjecture in number theory