Please show complete numerical solution.

Starting from a 1M stock HCl solution, prepare a stock solution of 0.1M for your use, and from this, prepare 50mL each of 0.05,0.025,0.0125, and 0.00625MHCl solutions. Calculate the exact molar concentrations of the diluted solutions by finding out the exact concentration of the stock solution. This is done by titration of the 0.1MHCl stock solution against standardized NaOH solution using a phenolphthalein end point. Question: a) How much volume of NaOH solution should you prepare? What is the mass of NaOH pellet you need to weigh and dissolve to a final volume. b) What mass of "KHP" do you need to weigh to standardize your titrant