Can you make a six-letter word using the letters N, A and B ?

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

I am sure no one can have two things for dinner. what are they?

Can you name an animal whose killing cannot be performed without spilling your own blood?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

What occurs twice in a week, once in a year but never in a day?

A Shopkeeper sold a few chickens to four different customers on a particular day. It was such that each customer purchased half of the remaining chickens and half the chicken more.

Can you find out how many chicken were sold by the shopkeeper on that day if we tell you that the fourth customer bought a single chicken ?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?