A man was stabbed in the heart, no one tried to save him but he didn’t die. How is that possible?

What word when read from left to right is a ruler but when read right to left is a servant?

Twelve pears hanging high, twelve men passing by. Each took a pear and left eleven hanging there. How can this be?

I can tear down mountains, or build them up. I can blind a man, or enable him to see. What am I?

I have five and take away two, yet I am left with four. How is this possible?

I can’t be seen, found, heard or smelled. I lie behind stars and under hills, I fill empty holes, come first and follow after. What am I?

What occurs once in a minute, twice in a moment and never in one thousand years?

The maker doesn’t want it, the buyer doesn’t use it and the user doesn’t know it. What is it?

What has feet and legs, but nothing else?

How do you make the number 7 even without addition, subtraction, multiplication, or division?