The meeting with no minutes

The meeting about the sacking lasted two hours and had no minutes. Everyone who was there remembers a different meeting. Some clues in this case come as riddles. If one stumps you, a hint will solve it. Not every row and column has to be occupied.

Suspects

• Américo, the sacked secretary-general: He remembers a meeting where he was pressured. He doesn't remember by whom.
• Bianca, the chief of staff: She remembers a friendly meeting. She also remembers that nobody invited her.
• Constantino, the legal adviser: He remembers a meeting about something else. He's sure, because he was reading another file.
• Deonilde, the secretary who served the coffee: She remembers four coffees and a glass of water nobody drank. She's the only one with numbers.