25 mL 0.4 M KOH will neutralize 10 mL 1.0 M H2SO4 solution.

A) True
B) False

2KOH + H2SO4 ==> K2SO4 + 2H2O

mols KOH = 25 x 0.4 = 10 millimols.
That will neutralize 1/2 that or 5 millimols H2SO4. How many millimols H2SO4 do you have?