Which of the following statements are true about ${\mathrm{P}}_4{\mathrm{O}}_6\text{ and }{\mathrm{P}}_4{\mathrm{O}}_{10}$?

Both these oxides have a closed cage like structure

Each oxide requires 6 water molecules for complete hydrolysis to form their respective oxoacids.

Both these oxides contain 12 equivalent P–O bonds

${\mathrm{P}}_4{\mathrm{O}}_6\text{ and }{\mathrm{P}}_4{\mathrm{O}}_{10}$ both contains $\mathrm{p\pi }-\mathrm{d\pi }$ bonds