State whether the following statements are true or false :
Two lines may intersect in two points.

State whether the following statements are true or false : A line has a definite length.

State whether the following statements are true or false : Two intersecting lines cannot both be parallel to the same line.

State whether the following statements are true or false : A ray has no end point.

State whether the following statements are true or false : Two distinct points always determine a unique line.

State whether the following statements are true or false : A plane has length and breadth but no thickness.

Examine whether the following statements are true or false: { a }⊂ { a, b, c }

Examine whether the following statements are true or false: { a }∈ { a, b, c }

State whether the following statements are true or false : Line bar(AB) is the same as line bar(BA ) .

State whether the following statements are true or false. a) Density is defined as the mass of the substance contained in unit volume.

Examine whether the following statements are true or false: { a, b } ⊄ { b, c, a }