There are infinitely many possible answers. A circle is one.
a paralellogram.
A four-sided figure with two pairs of parallel sides the same length and four right angles is called a square.
Parallelogram.
rhombus
The figure, as described, is impossible. If a quadrangle has 2 pairs of parallel sides then the number of right angles can be 0 or 4, but not 2.
a rhombus
A rectangle has 4 right angles and 2 pairs of parallel sides.
square
A diamond/ rhombus.
It is a square or a rectangle
It's called a Parallelogram. Take a rectangle or square and tilt the top to the left or right and you would have a box with parallel sides and no right angles.
A parallelogram has 2 pairs of parallel sides.