Which function is used in Excel to automatically sum up

Question figure

Which of the following groups of letters when sequentially placed from left to right will complete the given series? 

Arrange the words given below in a meaningful sequence:

(1) Poverty

(2) Population

(3) Death

(4) Unemployment

(5) Disease

A group of friends met at a club 15 days ago and promised to meet again after 36 days. If today is Saturday, on which day will the friends meet again?

If T > H > K > L and V < K > Z = B, then which of the following conclusions is NOT correct?

Which two numbers and two signs should be interchanged in the following equation to make it correct?

4 + 2 ÷ 7 + 8 × 9 = 25

Change the question mark with the option that follows the applied logic in the first pair. 

Net : Fish :: Antenna : ??

Select the number from among the given options that can replace the question mark (?) in the following series. 85, 84, 92, 65, 129, ?

Statements:

Some blankets are quilts.

Some quilts are bedsheets.

Conclusions:

I. All quilts are blankets.