a.  The Disciples' Two Questions- "What?" and "When?"............. 21:5-7

Luk 21:5 And as some spake of the temple, how it was adorned with goodly stones and gifts, he said,

Luk 21:6 As for these things which ye behold, the days will come, in the which there shall not be left one stone upon another, that shall not be thrown down.

Luk 21:7 And they asked him, saying, Master, but when shall these things be? and what sign will there be when these things shall come to pass?