It is impossible for someone to be a good thinker but a bad questioner. Because questions determine what should be done? The questions state the problem and show what the problem is.
Questions are considered to promote thinking, but answers are a sign of a complete stop in thinking.
In other words, thinking continues only when each answer raises new questions.

The mind without question is, in fact, not alive.
Without questioning, no understanding happens.
Superficial questions lead to superficial understanding and vague questions lead to vague understanding.
A mind that is not actively questioning is not actually learning.
And finally, questioning becomes our second nature due to repetition, and then our control over our thinking will increase and our control over our feelings and life will increase.

Taken from the book The Art of Questioning written by Linda Alder and Richard Paul, pages 13 and 88