头脑有问题 meaning in English

tohave a screw loose

Ron weasley : mental , that one , i ' m tell you
罗恩?韦斯莱：我告诉你，那个家伙头脑有问题。
They all thought that noah was crazy . they thought that he must have had a mental problem to do such a thing
他们都想诺亚是头壳坏掉福尔摩沙语，意思是头脑有问题，一定他头脑有问题才这样！
Suppose a person is walking on the road day and night , but doesnt know where his home is and doesnt know where he should return later ; is he not being a bit insane
一个人如果一天到晚走在路上，不知道自己的家在哪里，不晓得等一下要回哪里去，那个人是不是头脑有问题？