If 123 means "Very hot day", 356 means "hot filtered coffee" and 289 means "day and night", the numeral that stands for "very" is

[dmitrii_fediuk]

• 5
• 2
• 1
• 9

H = [1, 2, 3] ∩ [3, 5, 6] = 3
D = [1, 2, 3] ∩ [2, 8, 9] = 2
V = 1