IQ Test Labs

Discover your intellectual strengths

practice questions

Logical reasoning

Logical thinking is the ability to make deductions that lead rationally to a certain conclusion. It is important to have good logic skills because they help you think things through and they also give you a good understanding of cause and effect relationships. In this test your logic IQ was assessed through your ability to comprehend and follow certain rules and conditions set forth in many of the questions. Generally speaking logic skills make divergent thinkers and have proven to be very successful in our daily lives. Furthermore when combined with social insight and and self awareness logic skills make us into effective human beings. Improving these skills will increase your IQ and give you a good base for academic and personal success.

31. There are 3 books placed next to each other, like in the picture.

The left purple book has 220 pages, the middle yellow book has 200 pages, and the right green book 210 pages.

How many pages lie between first page of the purple book and the last page of the green book?

Logic IQ question 31
  1. 200
  2. 409
  3. 419
  4. 628

The purple book's front cover contacts the yellow book's back cover.

The green book's back cover contacts the yellow book's front cover.

A. There are 200 pages between the first page of the purple book and the last page of the green book

Logic IQ question 31

32. What comes next in the following series?

Logic IQ question 32
  1. 3
  2. 4
  3. meow
  4. neigh
  5. 5

Think of onomatopoeic sounds.

The onomatopoeic sound that animals make:

Sheep, baa(3). Cats, meow(4). Cows, moo(3). Dogs, woof(4). Horses, neigh(5)

Logic IQ question 32

33. Which of the following glasses has more water?

Logic IQ question 33
  1. Straw
  2. Diamond
  3. Toy car
  4. Ice cubes

Think of water displacement and the fact that the water levels in each cup are currently equal.

The straw displaces the least amount of water, therefore the first glass has more water.

34. Logical sequence

Find the next 3 numbers in the following series:

8 5 4 9 1 7 6 

  1. 3 2 0
  2. 8 5 4
  3. 4 8 2
  4. 5 5 4

Which digits are missing?

Think of alphabetical progression

A. 3 2 0. Each number is placed in the series according to where its first letter is located in the alphabet.

35. Water tanks

Which of the following water tanks will fill up first?

Logic IQ question 33
  1. 1
  2. 2 & 3
  3. 3
  4. 3 & 4
  5. 4

Gravity and air pressure is the same everywhere, and the flow rate of the tap is the same as that of the water flowing out of the openings.

The water will fill tank 3 until it reaches the tank 4 tube connection.

Logic IQ question 35

The water level in tank 4 will start rising until it becomes level with tank 3.

Logic IQ question 35

Tank 3 and 4 will fill up at the same time.

Logic IQ question 35