In the following question, find which one word cannot be

Determine the sum of the first 16 odd numbers.

For which range of 'p' does the expression 19p - 2p²- 35 have a positive value??

The remainder obtained when (47³ + 35³) is divided by 41 is 

16           4              2              1.5          1              1.875

The sum of the digits of a two-digit number is 9, and when the digits are reversed, the number decreases by 45. Find the changed number.

Find the unit digit of (76¹⁰¹ - 6).

Find the sum of all natural numbers less than 1,000 that are divisible by both 3 and 5 but not by 7.

How many times I write digit ‘1’ in first hundred natural numbers?