For the first question: core MATLAB is enough. The syntax (with an example) is:
correctAnswer = false;
while ~correctAnswer % reiterate until the right answer is provided
% put your function here, e.g.
output = input(description, 's');
if isa(output, 'double')
correctAnswer = true;
else
error('Wrong type is given.');
end
end
For the second question: you can use the functions of all toolboxes in a single program.
