Pictures & patterns
Visual reasoning
Look at how shapes move and change, then choose the missing piece.
6 sets · 60 questions
Explore visual setsStay curious. Find your next challenge.
Follow your curiosity.
Think it through.
BQ helps you practise reasoning with picture puzzles and written clues. Try a free ten-question set, use hints when you need them, and understand each answer with a clear explanation.
- No account needed
- Free reasoning practice
Try one before you start
What comes next?
Look at the gap between each number.
No timer here. Give it a go.
What would you like to practise?
Try a set of 10 questions at your own pace. Hints and explanations are free.
Words & clues
Logical reasoning
Read a few clues, connect the facts, and choose the answer that follows.
6 sets · 60 questions
Explore logical setsFor a focused challenge
Take the IQ test
Spot the missing piece in a series of visual patterns. Choose this when you have time to give the questions your full attention.
- Questions
- 35 visual puzzles
- Time
- 25 minutes
An online reasoning activity. See the result options and scoring details before you begin.
About the test →From the reading room
Make sense of the way you think.
Logical Reasoning
Logical Reasoning: Methods and Worked Examples
Explore six reasoning methods, worked examples, and common mistakes before your next practice session.
Read the guide →
IQ
What Is IQ?
What does an IQ score describe? Understand the numbers, the comparisons and what a test leaves out.
Read the guide →
Curious minds
Got a minute to learn something?
Why is the average IQ 100? What happens while you sleep? Follow a question into our collection of short tidbits, each with context and a source to explore.
The brain · Energy · Sleep · Learning · IQ
Explore the tidbitsWhat can I do on Brain's Quotient?
Explore logical reasoning through free practice and worked explanations, read about thinking and the brain, or try our original IQ test. Start with a short practice set and follow the topics that interest you.
What is free, and what is paid?
Logical practice includes free scores and explanations. Taking the IQ test is free; its start page explains the result available in that version. Any paid detailed-result option shows its price at checkout before you pay.
Is this a certified IQ assessment?
No. The IQ activity uses fixed scoring tables without a published validation study. Paying for a detailed result reveals the table score; it does not make the assessment more accurate.
Where should I start?
Start with logical practice sets 1–3 to learn the basics. Sets 4–6 combine more clues and test assumptions. These describe the intended progression, not a measured difficulty rating. Choose Learn mode for help as you go.
Do I need an account?
No. You can start directly. Logical practice saves only your latest session on this browser, when storage is available. Starting another set replaces it; clearing browser data removes it. Progress does not sync across devices.
What if I get stuck or want to return later?
Open Learn the method before starting a set. In Learn mode, review the method or use a hint before checking your answer. You can retry mistakes after finishing. Return to the practice page and choose Resume practice or View result for your latest saved session.
How does logical practice work?
Choose a ten-question set and a mode. Learn mode explains each answer as you go. Challenge mode lets you review all the explanations at the end. Both are untimed and free.
What does my practice score mean?
It shows how many questions you answered correctly in that set. It is a learning score, not an IQ estimate.