Questions that are not questions (on a test)

@EdwinAshworth is right. You can refer to tasks which are introduced by command words as questions. For example, the instructions on the International Baccalaureate sample examination in mathematics (pdf) contain the sentence:

Answer all the questions.

And the tasks themselves mostly use command words:

• Find the probability that a girl is taller than 170 cm.

• Calculate the volume of the solid ABCDEFGH.

• Write down the maximum area for triangle XYZ.

• Using the cosine rule, express z² in terms of x and cos Z .

If the tasks are given as instructions rather than questions, then you could simply instruct your students to solve the problems rather than answer the questions.

Or am I missing something?

Solve the problems in the space provided.