List of top Logical Reasoning Questions on Number Series

What will be the missing term marked with [?] in the circle?

Which is the missing number in the given number sequence?
7, 15, 32, -----, 138, 281

In the series given below how many 8s are there each of which is exactly divisible by its preceding as well as succeeding numbers?
2, 8, 3, 8, 2, 4, 8, 2, 4, 8, 6, 8, 2, 8, 2, 4, 8, 3, 8, 2, 8, 6

Complete the series: A2, C6, F12, J20, ?

Complete the series: B2, D4, G7, K11, ?

Complete the following series: C, FGH, MNOPQ, ?

Complete the series: 3, 5, 9, 17, 33, ?

The numbers in the series 3, 9, 27, ?, 243 follow a pattern. What is the missing number?

4, 10, 18, 28, ?

Complete the series: 4, 9, 19, 34, 54, ?

Complete the following series: B2, E4, I8, N16, ?

Find the missing character from among the given alternatives.

Find the missing character from among the given alternatives.

Complete the series: WXCD, UVEF, STGH, QRIJ, ?

Complete the series: 4, 7, 12, 19, 28, ?

If every book buyer has a good reading habit and everyone with good reading habit visits libraries, can we infer that all who visit libraries are book buyers?

If all dogs are ferocious animals and no ferocious animal is a cat, can we infer that no dog is a cat?

In a row of twelve boys, a boy is shifted by three places towards the right, then he became sixth from the right end. The earlier position of that boy from the left end of the row is

In a school there are five classes (class 1 to class 5) and each class has two sections A and B. Each section is accommodated in a different classroom. The classrooms are in a row.
(i) The two sections, A and B of any class are not adjacent to each other.
(ii) Any four consecutive classrooms accommodate two A sections and two B sections.
(iii) Class 5 A is three places away from class 1 A and neither of these two is at any of the extreme ends.
(iv) Class 3 B is three places away from class 4 B and neither of these is at any of the extreme ends.
(v) Class 2 B is not at any of the extreme ends.
(vi) Class 2 A is at the extreme right.
(vii) Class 5 A is to the right of class 3 B.

Which class is to the immediate right of class 3 B?

Seven friends P, Q, R, S, T, U, and V sit on a bench facing north. Each of them is of a different weight (in kg), their random bodily weights are 79, 83, 85, 87, 89, 92, and 96. The following information is known about them:
- P sits third to the right of the heaviest person.
- The heaviest person sits exactly between R and the lightest person, who sits at an end.
- The third lightest person sits adjacent to R and that person is neither P nor adjacent to P.
- Q sits third to the left of the person whose weight is the next higher to R.
- R’s weight is neither 83 kg nor 87 kg.
- P’s weight is neither 92 kg nor 79 kg.
- T’s weight is 83 kg.
- S is heavier than V but is not the heaviest.

Who is the third lightest?

A rectangular field is of length 42m and width 24m. A path of width 2m is formed inside of the land adjoining all the four sides of the land. The remaining area of the field is (in sq. m.)

In the sequence 50, 50+k, 50+2k, 50+3k, 50+4k, ….., the 51st term is 350. Then the value of \( k \) is equal to

What is the essential part of (that is strongly connected to) ‘Book’?