This is a classic brain teaser (lateral thinking puzzle) about how many “holes” a T-shirt has.

The real idea behind it:

There is no single correct answer — it depends on how you define a “hole”.

Common interpretations:

1) 4 holes (most practical answer)

• Neck opening
• Left sleeve
• Right sleeve
• Bottom opening

➡️ This is the normal, real-world answer.

2) 8 holes (more “logical/technical” definition)
If you count each opening as having:

• an entry side + an exit side

Then:

• 4 openings × 2 sides = 8 holes

3) 12+ holes (trick versions)
Some viral puzzles get creative and start counting fabric edges, seams, or “pass-through points,” but this is more of a joke than real logic.

Bottom line:

• Real life: 4 holes
• Puzzle logic: often 8
• Viral trick answers: depends on how far you stretch the definition

If you want, I can show you why this puzzle confuses people psychologically (it’s actually about how the brain objects , not math)