Which group of animals are exclusively free living marine animals?

A man lifts a luggage of 25 kg from the ground and puts it on the head, 2.5 m above the ground. If the value of g = 10 m/s2, then the value of work done by him on the luggage is

Which of the following statement is sufficient to answer the question?

Find the values of x, y, z from the given statements.

Statements :

I. x + y =12; x + z = 4

II. x - y = 6

Who among these union ministers in the PM Narendra Modi cabinet belongs to the Shiv Sena party?

Solve the following

23 - [23 - {23 - (23 - 23 + 23)}]

10 people could complete a task in 8 days. After 4 days, 2 of the workers left. How many days from then did it take to complete the task?

Consider the given statement to be true even if they seem to be at variance with the commonly known facts and decide which of the given conclusions logically follows from the given given statement.

Statement :

Some spoons are glasses. All the plates are glasses.

Conclusions :

1. Some glasses are plates

2. Some glasses are spoons

The present ages of Kavitha, Rajitha and Haritha are in the ratio of 4 : 7 : 9. Eight years ago, the sum of their ages was 56. Find their present ages (in years).