A trapezoid
a pentagon
1 pair of parallel sides mean 1 pair of non-intersecting lines for example, squares, their lines don't touch when they up or down.
A kite is one example
A trapezoid perhaps
Trapezium
A trapezoid has only 1 pair of opposite parallel sides of different lengths.
A trapezium
A prism.
A trapezoid
a pentagon
1 pair of parallel sides mean 1 pair of non-intersecting lines for example, squares, their lines don't touch when they up or down.
Trapizium
A kite is one example
A trapezoid perhaps
A shape with no right angles and one pair of parallel lines would be called a trapezoid in the USA, and a trapezium in Britain.
A parallelogram has 1 pair of parallel lines that is also regular. See the related link.