Best emojis for problem❓⚠️❔❗🧠

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❓
red question mark
?, problem, punctuation, what, why, how, unknown, query, need, FAQ
⚠️
warning
caution, alert, attention, notice, notification, error, problem, issue, danger, hazard, note, risk, threat, unsafe, trouble, exclamation, !, fault, limitation, critical, important, mistake
❔
white question mark
?, problem, punctuation, what, why, how, unknown, query, need, FAQ
❗
red exclamation mark
!, exclamation point, bang, punctuation, danger, attention, alert, warning, surprise, important, critical, emphasis, emphasized, problem, trouble, necessary, significant
🧠
brain
mind, intelligence, cognitive, thinking, thought, head, knowledge, skill, ability, smart, wisdom, algorithm, logic, reasoning, problem solving, insightful, understand, understanding, belief, sense, realize, realization, memory, remember, behavior, potential, mental, neural, theory