Which primitive unit cell has unequal edge length $(a \ne b \ne c)$ and all axial angles different from $90^{\circ}$?

The number of atoms present in a unit cell of a monoatomic substance with a simple cubic lattice is:

The crystal system with edge lengths $a \neq b \neq c$ and axial angles $\alpha = \beta = \gamma = 90^{\circ}$ is '$x$' and the number of Bravais lattices for it is '$y$'. $x$ and $y$ are:

Which of the following crystals has the unit cell such that $a=b \neq c$ and $\alpha=\beta=90^{\circ}$,$\gamma=120^{\circ}$?

What is the total number of different types of unit cells in a tetragonal crystal system?

The tetragonal crystal system has which of the following unit cell parameters?