普通の知能があればそれはわかるはずだ。の英語

A person with average intelligence would understand that.

something beyond human knowledge and understanding

a condition of being mysterious and beyond human knowledge

of something, the degree of being mysterious so that it is beyond human knowledge

Sometimes I doubt your intelligence.

the degree of being mysterious beyond human knowledge

of something, the state of being mysterious so that it is beyond human knowledge

of normal intelligence

This is all I need to know.

I wish I had known how to do it.

know what's what

Though he may be a dunce, he must be aware of that.

This information is quite far removed from common sense.

To have a low level of intelligence.

My intellect is low.

something which is not understood or which is beyond understanding; an enigma

mentally quick and resourceful

You can do it when you get the knack of it.

a sharp intelligence

It is important to have intellectual curiosity.

Confess your ignorance, and you will escape ignorance.

If you'd had a morsel of wit, you would have said so.

If there is a way, the boss will know.

of a person, being wise and intelligent

You should know better than to ask that.

intelligence as manifested in being quick and witty

omniscience and omnipotence

the quality of being unknowable

If only I knew!

mental ability