Buoyancy Questions

A jar is filled with two non-mixing liquids $1$ and $2$ having densities ${\rho }_1$ and ${\rho }_2$ respectively. A solid ball of density ${\rho }_3$ is dropped and comes to equilibrium such that it floats at the interface, partially in both liquids. Which of the following is true for ${\rho }_1$, ${\rho }_2$ and ${\rho }_3$?

A ball is made of a material of density $\rho$ where ${\rho }_{oil}<\rho <{\rho }_{water}$ with ${\rho }_{oil}$ and ${\rho }_{water}$ representing the densities of oil and water, respectively. The oil and water are immiscible. If the above ball is in equilibrium in a mixture of this oil and water, which of the following describes its equilibrium position?