[vadimberman]

> first he's asking you to prove your business skills by tossing an Excel sheets and saying 'please find the formula errors'? What will you think of him?

This Excel test will not prove much. However, asking "what do you think is the problem with that particular company" or "what do you think the issue with the company whose P&L sheet you are looking at" may not be a bad idea.

Most importantly, they have to be extensively interviewed about the strategy. That is unless they have a proven record, in which case it might be a dangerous exercise.

However, a dirty little secret: finding a non-technical co-founder is magnitude easier. That is, unless we are talking a rock-star level, which is a totally different story.