Line segment AM is congruent to line segment MB, but M is not the midpoint of line segment AB. How would this be drawn?
Here, line segment AM is congruent to line segment MB. AB is the line segment that you want to draw but it is given that M is not the mid point of AB; this means that M does not lie on AB as it would then be the mid point of AB.
From the information provided it is not possible for you to draw a unique line AB. There can be an infinite number of ways in which AB can be drawn.