Brain › General KnowledgeThey can be hinge, movable, immovable, semi-movable, or ball-and-socket. What are they?JointsBoltsHardware for carpentryJoistsAnswerThe correct answer is A) Joints.More General Knowledge questionsOn November 3, 1896, a British company did this for the first time.What is a formicary?Philip Bailey, Ronnie Laws, and Maurice White were members of what musical group?Who was Henry Pu Yi?Who was the first commander of a nuclear submarine?What was the first food to be microwaved?Play Brain · Practice