Watching the available tasks through the period of my own internal testing, 5 points (currently ≈0.008btc at 6.25usd/btc) is the lowest I've seen offered.

I've most often seen 15 points (≈0.024btc), with occasional 22 points (≈0.0035btc) or 31 points (0.049btc) tasks.

Supposedly, acquiring a strong track record may make an individual identity eligible for bonuses and higher-value tasks, but my experience with the task source isn't long enough to even know what that would look like, to a CoinWorker.

One interesting task I saw earlier, that hasn't recurred in a while, was a bit like the local-search-results-assessment, but for e-commerce searches (with product photos) within certain product categories.

{Warge