What are the best interview questions to ask a potential employee?

Behavioural questions!

Questions like:

- Are you accepting any stress put on you if you got our trust in you?

- What is your idea about motivation your colleagues ?

- What makes you a non-active person ?

- How do you deal with problems ?

STAR:

1. Situation.

2. Task.

3. Actions.

4. Result.

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In addition to technical interview, I found CBI (Competencies Based Interview) as a powerful interview technique in finding out a candidate's competencies and behaviors.

Questions are developed from job's competencies requirements and are open-ended questions.

Its depending on the job description and the job requirements, but you can use the skills questions like : How can you be creative in your work ? If you have a3 tasks which one you will start first ? Why we should to hire you ? What's the new things that you can provide to our company ?