In a group of persons traveling in a bus, 6 persons can speak Tamil, 15 can speak Hindi, and 6 can speak Gujarati. In that group, none can speak any other language. If 2 persons in the group can speak two languages only, and one person can speak all three languages, then how many persons are there in the group?

Four persons A, B, C, and D, consisting of two married couples, are in a group. Both the women are shorter than their respective husbands. A is the tallest among the four. C is taller than B. D is B’s brother.

In this context, which one of the following statements is not correct?

Consider the following statements followed by two conclusions:

Statements:

1. Some men are great.
2. Some men are wise.

Conclusions: I. Men are either great or wise. II. Some men are neither great nor wise.

Which one of the following is correct?

There are 5 tasks and 5 persons. Task-1 cannot be assigned to person-1 or person-2. Task-2 must be assigned to person-3 or person-4. Each person is to be assigned one task. In how many ways can the assignment be done?

The number of persons who read magazine X only is thrice the number of persons who read magazine Y. The number of persons who read magazine Y only is thrice the number of persons who read magazine X. Then, which of the following conclusions can be drawn?

1. The number of persons who read both the magazines is twice the number of persons who read only magazine X.
2. The total number of persons who read either one magazine or both the magazines is twice the number of persons who read both the magazines.

Select the correct answer using the code given below:

A society has fighters and cowards. Cowards are enemies with each other and with fighters, while fighters are indifferent to each other. If A and B are enemies, C and D are friends, E and F are indifferent, A and E are not enemies, and B and F are enemies, which statement is correct?