Logic tests: what they mean in hiring and how to practice

Reviewed: October 2026

When a company asks you to take a “logic test” in a hiring process, it almost always means a timed deductive reasoning test: drawing conclusions from a set of premises, reasoning with if-then statements, solving syllogisms and truth tables, or working out who tells the truth in knights and knaves puzzles. This guide explains what to expect, what it is not and how to practice the format with original exercises.

What companies usually call a logic test

In a hiring process, “logic test” is usually the name of a test with short problems you solve by reasoning with the information you are given, not with knowledge from a degree. The key is to separate what necessarily follows from the premises from what only seems reasonable. The exact name, the parts and their order vary by company and role.

These formats have a long history: the Stoic logician Chrysippus already described modus ponens and modus tollens, and the mathematician and logician Raymond Smullyan popularized knights and knaves puzzles. These are the ones that come up most:

  • Deduction from premises: deciding whether a conclusion necessarily follows from what is stated, or combining several clues to work out what goes with each person.
  • If-then statements: telling necessary conditions from sufficient ones, chaining conditionals and recognizing that the contrapositive is valid while the converse and the inverse are not.
  • Syllogisms: two premises with “all”, “some” or “no” and a conclusion you must accept or reject depending on whether it follows from them, even if it sounds reasonable.
  • Truth tables: evaluating compound statements built with AND, OR, NOT, XOR and IF-THEN, and simplifying them with equivalences such as De Morgan's laws.
  • Knights and knaves puzzles: characters who always tell the truth or always lie, and you have to deduce who is who from what they say.

How it is taken

Most often it is online: the company sends you a link and you answer from wherever you are, with a time limit. Sometimes it is a section within a broader psychotechnical test and sometimes it is a separate test, before the interviews.

Read the instructions and the opening examples calmly: they tell you how much time you have, whether you can go back and whether a blank answer counts differently from a wrong one. If something is unclear, ask before you start and confirm the details in your invitation.

How to practice here

On this site you can practice each of these formats with original exercises. Every test has a practice mode, which shows you the correct answer and an explanation after each question, and an exam mode, which gives no hints until the end, as in a real test.

Start with deductive reasoning, continue with conditional reasoning and truth tables, and once you know the format take the mock exam, which combines several categories with a time limit. Practice helps you recognize the type of question and manage your time, but it does not promise you a result. The guide “Does practice improve your hiring test score?” sums up what research says about this.

What it is not

A hiring logic test is not a psychological test or a clinical assessment, does not measure intelligence, does not predict how you will perform in the job and does not certify anything: it is a stage of the process in which the company looks at how you solve certain kinds of problems at a given moment.

There are no psychological tests on this site. There are only original reasoning exercises to practice with, and your practice stays saved in your browser.

How it differs from a psychotechnical test

A psychotechnical test usually brings together several aptitude tests, such as numerical, verbal and spatial reasoning or attention to detail, and logic can be one of them. A logic test focuses on deductive reasoning only.

If you were invited to a full psychotechnical test, also read the guide “Psychotechnical tests in hiring: what to expect and practice”.

Practice this here

Practice here the formats that usually appear in a logic test: deductive reasoning; conditional reasoning; and truth tables and syllogisms. They are original exercises, not copies of real tests or of restricted tests.

Start with these tests

How to solve each type

Frequently asked questions

What is a logic test?

In hiring, it is a timed test in which you solve deduction problems: conclusions from premises, if-then statements, syllogisms, truth tables or knights and knaves puzzles. It asks for no prior knowledge, only reasoning with the information you are given.

Can you practice for a logic test?

Yes. Practicing with similar formats helps you recognize the type of question, avoid classic mistakes such as taking the converse of an if-then statement as valid, and manage your time. It does not assure you a result, but it keeps the format from catching you off guard.

How long does a logic test take?

It depends on the company and on whether it is a separate test or a section of a broader assessment, so there is no standard length. The invitation or the opening instructions usually state the time; if they do not, ask before you start.

Is it the same as a psychotechnical test?

Not exactly. A psychotechnical test usually brings together several aptitude tests, and logic can be one of them. A logic test focuses on deductive reasoning only.

What happens if I do not finish in time?

It depends on each test. In many of them the time is tight on purpose, so not finishing does not by itself mean you did badly. Do not spend too long on a long puzzle and check the instructions to see whether it pays to answer everything or leave blank what you do not know.

Related guides

We are not affiliated with any assessment provider or their tests. This guide is independent, based on public sources and may change.