Last updated - May 27, 2025
Anyone who’s set to give their interview, would have come across an initial stage of screening with logical questions. This is round in interview is mostly to shortlist candidates based on their analytical, critical and mathematical reasoning skills.
This blog is going to introduce to 10 best logical questions and answers.
What are Logical Questions?
Logical questions are nothing but questions that prompt candidates to critically analyze questions and to reach a conclusion using a step-by-step process.
It is usually used in IQ assessments, interviews, and other competitive assessments.
X Best Logical Questions and Answers
- What comes next in the sequence: 2, 12, 30, 56, 90, ?
a. 132
b. 140
c. 120
d. 150
Answer: a. 132
Explanation: Differences are 10, 18, 26, 34 → next difference is +42 → 90 + 42 = 132
- A murderer is given a choice of three rooms:
Room 1: One full of raging fires
Room 2: One with assassins armed with guns
Room 3: One with lions who haven’t eaten in 3 years
Which room should he choose to survive?
a. Room 1
b. Room 2
c. Room 3
d. None
Answer: c. Room 3
Explanation: Lions that haven’t eaten in 3 years are already dead.
- Find the odd one out:
a. Boil
b. Roast
c. Freeze
d. Fry
Answer: c. Freeze
Explanation: Others involve heating; freezing involves cooling.
- You see a boat filled with people. It hasn’t sunk, but when you look again, you don’t see a single person. Why?
a. They all jumped into water
b. It was a ghost ship
c. Everyone was married
d. They were hiding
Answer: c. Everyone was married
Explanation: The play is on the word “single”.
- Find the missing number in the grid:
8 1 6
3 5 ?
4 9 2
a. 7
b. 6
c. 4
d. 5
Answer: a. 7
Explanation: Magic square — all rows, columns, diagonals sum to 15.
- All turtles are slow. Some slow creatures are snakes. Which of the following must be true?
a. Some turtles are snakes
b. All snakes are turtles
c. Some snakes are slow
d. All slow creatures are turtles
Answer: c. Some snakes are slow
Explanation: Only that conclusion logically follows.
- A man pushes his car to a hotel and tells the owner he’s bankrupt. Why?
a. His car broke down
b. He’s in a board game
c. It’s a taxi scam
d. He crashed the car
Answer: b. He’s in a board game
Explanation: It’s a Monopoly reference.
- What comes next in the sequence: AZ, BY, CX, ?
a. DW
b. EV
c. DU
d. DZ
Answer: a. DW
Explanation: First letter ascends (A → D), second descends (Z → W)
- If 5 machines take 5 minutes to make 5 gadgets, how long would 100 machines take to make 100 gadgets?
a. 100 minutes
b. 5 minutes
c. 1 minute
d. 10 minutes
Answer: b. 5 minutes
Explanation: Each machine takes 5 minutes per gadget.
- In a class of 100 students:
60 like Math
70 like Science
20 like neither
How many like both Math and Science?
a. 30
b. 40
c. 50
d. 60
Answer: c. 50
Explanation: 60 + 70 – x = 80 (100 – 20) ⇒ x = 50
Conclusion
Training in different kind of logical questions is necessary if you are set to attempt interviews or other competitive exams. These 10 questions are a small glimpse on how different kind of logical questions are.
FAQs
What are logical reasoning questions?
Logical reasoning questions test your ability to analyze patterns, solve problems, and think critically without relying on prior knowledge.
Where are logical questions commonly used?
They appear in competitive exams (like CAT, GRE, SSC), job interviews, IQ tests, and entrance assessments.
How can I improve my logical reasoning skills?
Practice regularly, solve puzzles and brainteasers, study number and letter series, and learn shortcut tricks for common patterns.
Are logical questions based on math?
Some are, especially number series and combinatorics, but many rely purely on pattern recognition, verbal logic, or abstract reasoning.
How much time should I spend on each logical question in an exam?
Ideally, 30–90 seconds per question, depending on difficulty. Practice under time constraints to improve speed and accuracy.
