I was asked this question from one of my group and I am wondering if two wizards can read the same spell say fireball from the same scroll at the same time and in effect have two fireballs created?
Two wizards can recite a scroll together. Mechanically, this is done by one of them using the Help action, followed by the other using the Use an Object action.
This does not cast Fireball twice. It grants advantage on the DC 13 Intelligence check required to use the scroll if the (second) wizard is below 5th level.