Verbal Reasoning - Mental Ability Questions

The weights of 4 boxes are 100, 70, 50 and 90 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?

In a certain code language, “FRANK” is written as “GQBML”. How is “MARCO” written in that code language?

In the question given below, a statement is given followed by three courses of action. A course of action is taken for improvement, follow up, etc. Read the statement carefully and give your answer.

Statement:
A knife-wielding assailant killed a 29- year-old man and injured four others in a lively neighbourhood near Paris’ famed Opera Garnier before he was killed by police on Saturday night.

Courses of Action:
I. The government should ban the sale of knives in all major cities.
II. Any person seen carrying a knife should be immediately taken into police custody.
III. Policemen should be posted near all major tourist spots to avoid such untoward incidents.

After their day's work two village women are returning home. The first woman walks 1.5 km West, then turns to her right and walks 3 km to reach her house. In the meanwhile the second woman walks 1 km North, then she turns East and walks 3.5 km, then she turns to her left and walks 2 km to reach her house. Where is the first woman's house with respect to the second woman's house?

A man starts from a point, walks 5 km towards East, turns right and walks 3 km, turns right again and walks. What is the direction he is facing now?

Consider the following information and answer questions based on it.

Seven bottles colored - brown, blue, black, violet, white, indigo and purple are kept in a row, in random order, from left to right such that the -

1. White and purple bottles are not at either extremes.

2. Brown bottle is to the immediate right of violet bottle and to the immediate left of the white bottle.

3. White, violet and brown bottles are not at the center.

4. Black bottle is to the immediate left of purple bottle.

5. Blue bottle is neither second last nor at either extremes.

Which of the following statement is correct?

Find the missing number?

In the following question, by using which mathematical operators will the expression become correct?
15 _ 3 _ 4 _ 20