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Thinking Icons PNG & SVG - Page 6

Browse 1,464 different thinking icons in 147 unique design styles. Download thinking icons in PNG, SVG, PDF, or ZIP formats.

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  1. Bold solid icon of a person silhouette beside a speech bubble with three dots. Used for chat, contacts, and messaging.
  2. Rounded gradient icon of a split brain with branching white grooves. Used for AI, machine learning, and neural networks.
  3. Rounded neon icon of a brain with circuit traces. Used for AI, machine learning, neural networks, and technology.
  4. Rounded gradient icon of a stylized brain formed by two puzzle-like hemispheres. Used for AI and machine learning.
  5. Rounded flat icon of a split brain with circuit traces and neural curves. Used for AI, ML, and neural networks.
  6. Rounded colored solid icon of a brain with circuit-like cutouts. Used for AI, machine learning, and technology interfaces.
  7. Rounded solid icon of a split brain with circuit-like paths. Used for AI, machine learning, and neural networks.
  12. Clean line icon of a head profile with a gear inside. Used for psychology, mental health, settings, and cognitive tools.
  16. Clean line icon of a human head outline with a question mark inside. Used for psychology, mental health, and self-reflection apps.
  22. Clean duotone icon of a head profile with atom orbit and central dot. Used for science and AI interfaces.
  23. Clean line icon of an atom symbol inside a side-profile head outline. Used for science, ideas, and educational technology.
  24. Clean solid icon of a six-lobed shape with a central hexagon and dot beside a curved arc. Used for science and brain research.
  25. Sharp duotone icon of a padlock inside an angular shield. Used for account security and access control.
  26. Sharp line icon of a padlock inside a shield outline. Used for account security and access protection.
  27. Sharp duotone icon of an angular user bust outline surrounding a padlock. Used for account security, sign-in, and permissions.
    Free
  28. Sharp line icon of a padlock inside a shield outline. Used for account security, privacy, and access control.
    Free
  29. Rounded hand-drawn icon of a human head outline with interlocking puzzle pieces. Used for brain health and education.
  30. Clean hand-drawn icon of a profile head with two puzzle pieces. Used for cognition, learning, and mental health.
  31. Playful hand-drawn icon of speech bubbles, a lightbulb, and blue accent marks. Used for ideas and conversation.
  32. Clean line icon of a head outline with curved arrows inside. Used for ADHD awareness, health apps, and symptom tracking.
  33. Rounded hand-drawn icon of a head outline with a blue brain. Used for mind, intelligence, and neuroscience.
  34. Clean duotone icon of a glowing light bulb above an open book. Used for ideas, learning, and education.
  35. Playful creative icon of a light bulb above a suited person. Used for ideas, innovation, and brainstorming.
  36. Clean line icon of a lightbulb with rays, a Y-shaped filament, and base. Used for ideas and inspiration.
  37. Clean line icon of a light bulb above a faceted head outline. Used for ideas, creativity, learning, and brainstorming.
  38. Bold solid icon of a black shape with four white arrows in a 2x2 grid. Used for OCD symptoms and mental health.
  39. Clean line icon of rounded outline with four upward arrows. Used for OCD symptoms and mental health interfaces.
  41. Clean flat icon of a split brain with blue halves and dark sections. Used for neuroscience, learning, and AI.
  42. Clean colored solid icon of a symmetrical green brain with dark blue contours. Used for neuroscience, learning, and cognition.
  43. Bold solid icon of a brain with two lobed hemispheres split by a central gap. Used for neuroscience, intelligence, and cognition.
  44. Clean duotone icon of a brain with mirrored lobes and central stem. Used for AI, memory, and health.
  45. Clean duotone icon of a symmetrical brain with rounded lobes. Used for AI, neuroscience, and memory interfaces.
    Free
  46. Bold colored solid icon of a brain with two lobes and inner folds. Used for AI, learning, and cognition.
    Free
  47. Clean hybrid solid and line icon of a two-lobed brain with curved inner contours. Used for neuroscience, memory, and AI.
  50. Clean line icon of a stylized brain with two symmetrical lobes and inner folds. Used for AI, memory, ideas, and neuroscience.
    Free