Logic & Aptitude Puzzles

What this section covers

Puzzle-centric drill set for DV interviews: exact reasoning for brain teasers, probability, digital logic construction, and fast bug forensics under pressure.

Topics

Classic Brain Teasers — 6 puzzles
Probability Puzzles — 6 puzzles
Digital Logic Puzzles — 6 puzzles
Debugging Riddles — 6 puzzles

How to practice

1. Open each topic and attempt every puzzle cold, writing your predicted answer first.

2. Only then read the step-by-step solution and confirm the exact answer.

3. Re-read the 'why candidates get it wrong' note — that is the actual interview signal.

4. Finish with the section Q&A to rehearse explaining the rule out loud.

Related topics

• VLSI DV Interview Puzzles hub