Brain with Question Mark Icon - Curiosity, Inquiry, and Critical Thinking Symbol #1570259 (License: Personal Use)

This vector-style illustration features a bold black brain silhouette outlined in vibrant lime green, with a large question mark hovering above, suggesting unresolved thought or intellectual inquiry. The glow effect adds emphasis and modern visual appeal, making it suitable for digital interfaces or educational materials. Its minimalist design ensures high recognizability across devices and contexts.

Commonly used on landing pages for psychology services, e-learning platforms, FAQ sections, or articles about critical thinking, decision-making, or mental health awareness-targeting users seeking clarity or deeper understanding.