Pendullum issues

If I use Solemn Warning to a Pendulum summon, does the monster(s) go to grave or face up to the extra deck?

A Synchro summon with a pendulum monster make it go to extra deck or grave?

Extra deck FU

Here's what to remember, only time a pendulum card whether monster or scale goes to extra deck is if it hits the field/ i.e it's not negated OR if it's not XYZ material. If a pendulum monster(s) gets solemn warning, their summon gets negated so the monster(s) goes to the grave

Pendulum monsters used for Tribute, Synchro summon goes to the extra deck.

Yep