There are 7 puzzles which Buddha answered in his mystical way :

1) What is the SHARPEST thing in this world?

His people replied simultaneously: The Sword

Buddha answered: The sharpest is the human tongue, because, with the tongue, humans easily hurt the heart, hurt people's feelings, through slander, etc ...

2) What is the MOST distant from us in this world?

Some replied: Space, the moon, the sun

Buddha answered: The most distant is the Past. Whoever we are, however rich we may be, we can NOT go back in time. Therefore we must make good use of today & the days that will come.

3) What is the BIGGEST thing in this world?

Someone replied: Mountains, the Earth .. the Sun

Buddha answered: The biggest thing in the world is Lust. Many humans become wretched because they indulge in their lusts. All means are justified in order to realize the lusts of this world. Therefore be careful with lust!

4) What is the HARDEST (and has the MOST WEIGHT) in this world?

Someone replied: Steel, iron .. elephant

Buddha answered: The hardest is ... a promise. It's easy to say it but extremely hard to do it.

5) What is LIGHTEST thing in this world?

Someone replied: Cotton, wind, dust, leaves

Buddha answered: The lightest thing in the world is humility, hence it is easy to forget humility & to leave humility. Look at the many people who are chasing after wealth and position .. they simply drop & leave humility.

6) What is CLOSEST to us in this world?

Someone replied: Our parents, friends & relatives

Buddha answered: The closest to us is DEATH because death is SURE and can happen any second.

7) Last question: What's the easiest thing to do in this world?

They replied: Eating, sleeping, hanging out

Buddha answered: The easiest is to SHARE THIS DHAMMA (message). It will be a useful reflection for your friends who read it

Even non-Buddhists can use this knowledge and wisdom

May all living beings be joyful, peaceful & wise.