Preparing for a public service exam? To help you practice, I’m sharing a free online IQ practice set for you. This is designed specifically for public service examination. You can practice this free IQ online practice set for any position.
Difficulty level: Easy to Moderate
Your Score
#1. What comes next in the sequence? 5, 15, 30, 90, 180, ?
Answer: c. 540
Explanation:
The pattern multiplies by 3 and 2 alternately:
5 × 3 = 15
15 × 2 = 30
30 × 3 = 90
90 × 2 = 180
180 × 3 = 540
#2. Which number does not fit in the group?
Answer: d. 541
Explanation:
middle digit is multiplication of first and last digit: 2*3=6, 3*3=9, 4*2=8, 5*1= 5 (it has 4, hence odd).
#3. 20 people can complete a task in 10 days. How many more people are needed to finish the task in 5 days?
Answer: c. 20
Work = People × Days = 20 × 10 = 200 units
To finish in 5 days: 200 / 5 = 40 people needed
Additional people = 40 – 20 = 20
#4. If the first day of a month is Monday, what is the maximum number of Mondays that month can have?
Answer: a. 5
Explanation:
If the month has 29, 30, or 31 days and starts on a Monday, it will have 5 Mondays
#5. A spider climbs a 30-foot wall, ascending 6 feet during the day and slipping 2 feet at night. How many days will it take to climb the wall?
Answer: c. 7
Explanation:
Net gain per day = 6 – 2 = 4 feet
After 6 days: 6 × 4 = 24 feet
On the 7th day, the spider climbs the remaining 6 feet without slipping.

#6. What number should replace the question mark?
Answer: a. 25

#7. In how many years was the export greater than the import?
Answer: a. 4
#8. Reference the previous figure in #7: By what percentage did imports increase from 1997 to 1998?
Answer: d. Data insufficient
Explanation:
Without actual import figures, percentage increase can’t be calculated.
#9. Choose the correct conclusion based on the statement:
Statement: All bags are cakes. All lamps are cakes.
Conclusions: I. Some lamps are bags. II. No lamp is a bag.
Answer: d. Either I or II follows
Explanation:
Both conclusions are possible but not certain, so “either” is the right answer.
#10. In a class of 40 students, Ram is 20th from the front. Two new students join, and Ram’s rank drops by one. What is his position from the back now?
Answer: d. 22
Explanation:
New total students = 42
Ram’s new position from the front = 21
Position from the back = 42 – 21 1 = 22
#11. Analyze the relationship between the two facts:
The importance of yoga and exercise is recognized everywhere.
Awareness of healthy lifestyles is increasing.
Answer: b. Second is the cause, first is the effect.
Explanation:
As people become more aware of healthy lifestyles, they recognize the value of yoga and exercise.
#12. Find the next letter in the sequence: Y, W, T, P, K, ?
Answer: a. E
Explanation:
Pattern: Subtracting 2, 3, 4, etc., from the alphabetical position:
Y(-2) = W, W(-3) = T, T(-4) = P
#13. Class is related to Blackboard as Cinema Hall is related to?
Answer: d. Screen
Explanation:
A blackboard is where lessons are displayed in a class; a screen is where films are shown in a cinema hall.
#14. In a code language, if RAFTING is coded as 925217181320, what is the code for MOVIES?
Answer: a. 1412518228
Explanation:
Revere coding of each alphabet. (27-18[R] =9).

#15. How many straight lines and triangles are there in the figure?
Answer: d. 9 & 17

#16. Which figure can be formed using the pieces in Figure X?
Answer: b. 2

#17. In which figure can the dot be placed similarly to Figure X?
Answer: a. 1

#18. Complete the matrix.
Answer: a. d

#19. What will be the water reflection of Figure X?
Answer: a.
Explanation:
The water image will mirror the figure vertically.

#20. Which Venn diagram correctly represents the relationship between Earth, Forest, and Tree?
Answer: a.