哥谭中关于爱的谜语如下：

I can't be bought, but I can be stolen with a glance. I am worthless to one but priceless to two. What am I？——love

I am the son of water, but if water touches me, I die. What am I？——salt

You struggle to regain me. When I'm lost, You struggle to obtain me. What am I？——time

I can start a war or end one. I can give you the strength of heroes or leave you powerless. I might be burned with a glance, but no force can compel me to stay. What am I？

这些谜语都以爱为主题，表达了爱的复杂性和多样性。第一个谜语描述了爱的无法用金钱衡量，第二个谜语通过盐和水的比喻来描绘爱的脆弱和珍贵，第三个谜语则强调了时间的流逝和爱的珍贵。第四个谜语则通过战争和英雄的力量来象征爱的力量和控制力。