A square has a rotational symmetry of order

A figure has a rotational symmetry of order more than $1$, the angle of rotation can be

Which of the following has no line of symmetry

The figure which has two lines of symmetry and rotational symmetry of order $2$ is

The order of rotational symmetry of a circle is

The least angle of rotation of a regular pentagon is

The order of rotational symmetry of regular octagon is

Which squares should be shaded to make the given figure symmetric?