Curious

好奇

hàoqí

(tending to ask questions, or to want to explore or investigate — see also inquisitive)

有好奇心

yǒu hàoqíxīn

(tending to ask questions, or to want to explore or investigate — see also inquisitive)

異常 /异常

yìcháng

(leading one to ask questions about; somewhat odd, out of the ordinary, or unusual)