Which of the statements is sufficient to answer the question?

Question:
Find the sum of the first 10 numbers in the series.

Statements:
I. The first number is 2 and number is 20.
II. The common difference is 2.

A solar cell is made up of:

Kiran swims in a 90 m long pool. He covers 360 m in two minutes by swimming from one end to the other and back 0 along the same straight path, twice. Find the average speed of Kiran.

The base of a pyramid is a rectangle whose length and breadth are 16 cm and 12 cm respectively. If the length of all the lateral edges passing through the vertex of the right rectangular pyramid is 26 cm, then find the volume of the pyramid in cubic centimeter?

.........., the Sultan of Delhi shifted his capital from Delhi to Daulatabad.

Four words have been given below of which three are alike in some way and one is different. Choose the odd one out.

Choose the figure which is different from the rest.

............ element is represented by the given symbol.