IB Bulge Bracket Corporate Treasury Department Interview NEED HELP!

Hi,

I have an interview with Corporate Treasury Department at an IB Bulge Bracket institution.

I do not have FIG banking background but some of the questions I thought of were as follows: the differences between the cost of equity and the cost of debt to a bank, as well as how the banks calculate metrics such as ROE or leverage ratio. Moreover, what are the regulations on Basel liquidity regulation?

Can somebody explain how banks are run, how they are valued, and what metrics they look?

Answers to any of the questions above or any color would be appreciated.

MANY THANKS!