17. By what process may a depositor withdraw money from a savings bank?
18. Define a paid voucher.
19. When do banks return checks to their customers?
20. When are checks payable?
21. What should a customer do with paid checks when they are received from his bank?
22. When must checks be presented for payment?
23. Is a bank required to pay the checks of its depositors?
24. If a bank refuses to pay a check what, if anything, must the holder do to hold the maker liable?
25. Are national banks permitted to make loans on real estate?
26. Are savings banks permitted to make loans on real estate?