質 means quality; (in 質問) question and is a JLPT N4 kanji. It has 15 strokes and uses the shell / money radical (貝).
Stroke order · 15 strokes
On'yomi (音読み)
シツ、シチ
Kun'yomi (訓読み)
たち、ただ(す)、もと
Radical
貝 · shell / money
Strokes
15
How to remember 質
Two 斤 (axes) used to strike 貝 (a shell/coin) to check it — real or fake, what quality is it. 質問 (shitsumon) = question, i.e. checking the quality of what was said.