Re: Not only normal meetings...
Daily stand-ups are OK if they're kept short and waffling is discouraged. I suspect that one of their benefits is that having to report on what they're doing keeps developers' noses to the grindstone.
The most time-wasting of the agile ceremonies is the Sprint Review - what went well (nothing especially), what went badly (same as last sprint), bits of paper commending team members (cringe), Post-Its invariably falling off the wall.