Exercises 1, 2, 3 on page 121, and exercise 1 on page 206 from <a href="https://webhomes.maths.ed.ac.uk/~v1ranick/papers/edelcomp.pdf">Edelsbrunner's book</a>
and exercise 4 on page 131 from <a href="https://pi.math.cornell.edu/~hatcher/AT/AT.pdf">Hatcher's book</a>.