Coding question 1: Here is a function with an obvious mistake in the syntax - write a counter-function that specifically returns data sets that will not work in the given function. Just look at the syntax of the given function and you'll understand what to write in return. Second question is hard to remember 2 weeks later but I'd rate it as a medium LeetCode level question.
Sigiloso
Practicing on LeetCode and Algoexpert help a ton, just make sure to keep current on your algorithm writing.