user471: The sutta quoted below has a riddle about the six.
What are the six? And why?
What is the message of the sutta?
SN 1.70 translated by Bhikkhu Bodhi:

“In what has the world arisen?
  In what does it form intimacy?
  By clinging to what is the world
  Harassed in regard to what?”
“In six has the world arisen;
  In six it forms intimacy;
  By clinging to six the world
  Is harassed in regard to six.”


user8157: In what has the world arisen? Kismiṃ loko samuppanno?

And what, bhikkhus, is the origin of the world (lokassa samudayo)? 

In dependence on the
  eye and forms, eye-consciousness arises. The meeting of the three is
  contact. With contact as condition, feeling comes to be; with feeling
  as condition, craving; with craving as condition, clinging; with
  clinging as condition, existence; with existence as condition, birth;
  with birth as condition, aging-and-death, sorrow, lamentation, pain,
  displeasure, and despair come to be. This, bhikkhus, is the origin of
  the world.
In dependence on the ear and sounds … 
In dependence on the nose and
  odours … 
In dependence on the tongue and tastes … 
In dependence on the
  body and tactile objects … 
In dependence on the mind and mental
  phenomena, mind-consciousness arises. The meeting of the three is
  contact. With contact as condition, feeling comes to be; with feeling
  as condition, craving; with craving as condition, clinging … existence
  … birth; with birth as condition, aging-and-death, sorrow,
  lamentation, pain, displeasure, and despair come to be. This,
  bhikkhus, is the origin of the world.
SN 12.44



user295: Cha Chakka Sutta is another Sutta which has a play of the number 6. Here more elaboration is given on what each set of 6 is.

Source: Cha Chakka Sutta
The Singhala translation is less of a riddle than the English. English retranslation is mine:

(අධ්‍යාත්මික ආයතන) සය උපන් කල්හි ලොව උපන්නේ නම් වේ. 

When the 6 sense bases arises the world arises

(රූපාදී බාහිර ආයතන) සයෙහි සඞගමය කෙරෙයි. 

By non-reaction to the external sense objects, the world is stilled

(අධ්‍යාත්මික ආයතන) සයම ප්‍රත්‍යය කොට ගෙන 

By means of the 6 sense bases 

(බාහිර ආයතන) සයෙහි ලෝ වැසි තෙම පෙළෙයි (වෙහෙසෙයි)

The 6 external sense objects trouble the worldlings
ලොක ( හෙවත් ජස්සුලොක ) සූත්‍රය
අධ්‍යාත්මික ආයතන - world - internal senses - eye, ear, ....
බාහිර ආයතන - external sense objects
So what is covered here is the 1st 2 items in the list of items in Cha Chakka Sutta:

the 6 internal senses
the 6 external senses


471: <p>The sutta quoted below has a riddle about the six.</p>

<p>What are the six? And why?</p>

<p>What is the message of the sutta?</p>

<p><a href="https://suttacentral.net/sn1.70/en/bodhi" rel="nofollow noreferrer">SN 1.70</a> translated by Bhikkhu Bodhi:</p>

<blockquote>
  <p>“In what has the world arisen?<br>
  In what does it form intimacy?<br>
  By clinging to what is the world<br>
  Harassed in regard to what?”</p>
  
  <p>“In six has the world arisen;<br>
  In six it forms intimacy;<br>
  By clinging to six the world<br>
  Is harassed in regard to six.”</p>
</blockquote>
 8157: <p>In what has the world arisen? Kismiṃ loko samuppanno?</p>

<blockquote>
  <p>And what, bhikkhus, is the <strong>origin of the world (lokassa samudayo)</strong>? </p>
  
  <ol>
  <li><p>In dependence on the
  <strong>eye and forms, eye-consciousness</strong> arises. The meeting of the three is
  contact. With contact as condition, feeling comes to be; with feeling
  as condition, craving; with craving as condition, clinging; with
  clinging as condition, existence; with existence as condition, birth;
  with birth as condition, aging-and-death, sorrow, lamentation, pain,
  displeasure, and despair come to be. This, bhikkhus, is the origin of
  the world.</p></li>
  <li><p>In dependence on the <strong>ear and sounds</strong> … </p></li>
  <li>In dependence on the <strong>nose and
  odours</strong> … </li>
  <li>In dependence on the <strong>tongue and tastes</strong> … </li>
  <li>In dependence on the
  <strong>body and tactile objects</strong> … </li>
  <li><p>In dependence on the <strong>mind and mental
  phenomena, mind-consciousness</strong> arises. The meeting of the three is
  contact. With contact as condition, feeling comes to be; with feeling
  as condition, craving; with craving as condition, clinging … existence
  … birth; with birth as condition, aging-and-death, sorrow,
  lamentation, pain, displeasure, and despair come to be. This,
  bhikkhus, is the origin of the world.</p>
  
  <p><a href="https://suttacentral.net/sn12.44/en/bodhi" rel="nofollow noreferrer">SN 12.44</a></p></li>
  </ol>
</blockquote>
 295: <p><a href="http://www.themindingcentre.org/dharmafarer/wp-content/uploads/2009/12/26.6-Chachakka-S-m148-piya.pdf" rel="nofollow noreferrer">Cha Chakka Sutta</a> is another Sutta which has a play of the number 6. Here more elaboration is given on what each set of 6 is.</p>

<p><a href="https://i.stack.imgur.com/lS9W2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lS9W2.png" alt="Cha Chakka Sutta"></a></p>

<p>Source: <a href="http://www.themindingcentre.org/dharmafarer/wp-content/uploads/2009/12/26.6-Chachakka-S-m148-piya.pdf" rel="nofollow noreferrer">Cha Chakka Sutta</a></p>

<p>The Singhala translation is less of a riddle than the English. English retranslation is mine:</p>

<blockquote>
  <p>(අධ්‍යාත්මික ආයතන) සය උපන් කල්හි ලොව උපන්නේ නම් වේ. </p>
</blockquote>

<p>When the 6 sense bases arises the world arises</p>

<blockquote>
  <p>(රූපාදී බාහිර ආයතන) සයෙහි සඞගමය කෙරෙයි. </p>
</blockquote>

<p>By non-reaction to the external sense objects, the world is stilled</p>

<blockquote>
  <p>(අධ්‍යාත්මික ආයතන) සයම ප්‍රත්‍යය කොට ගෙන </p>
</blockquote>

<p>By means of the 6 sense bases </p>

<blockquote>
  <p>(බාහිර ආයතන) සයෙහි ලෝ වැසි තෙම පෙළෙයි (වෙහෙසෙයි)</p>
</blockquote>

<p>The 6 external sense objects trouble the worldlings</p>

<p><a href="https://suttacentral.net/sn1.70/si/zoysa" rel="nofollow noreferrer">ලොක ( හෙවත් ජස්සුලොක ) සූත්‍රය</a></p>

<p>අධ්‍යාත්මික ආයතන - world - internal senses - eye, ear, ....</p>

<p>බාහිර ආයතන - external sense objects</p>

<p>So what is covered here is the 1st 2 items in the list of items in <a href="http://www.themindingcentre.org/dharmafarer/wp-content/uploads/2009/12/26.6-Chachakka-S-m148-piya.pdf" rel="nofollow noreferrer">Cha Chakka Sutta</a>:</p>

<ul>
<li>the 6 internal senses</li>
<li>the 6 external senses</li>
</ul>
