I use it for a bunch of small questions:

1. Calculations wrt inflation: “$1000 1975 in 2021”

2. Draw a mathematical equation: “(x^2 + y^2 -1)^3 -x^2y^3 <0”

3. Computations with visualisation: “area under y=x^2 from 1 to 3”

4. Bitrate calculations: “1.5TB at 10mbps”

5. Compare weather/climate between cities: “compare weather brussels and cape town”

I use ddg as search engine, so can just add !wa to the query and ddg will redirect it to Wolfram Alpha. I don’t use it very often but love how quickly it can answer most problems.