When can we add 2 to 11 and get 1 as the correct answer?

what one word does the below rebus identifies?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

By moving just one matchstick, you need to make the below statement true. Can you do it?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

These types of puzzles are known as charades. What you have to do is find two words that are referred to in the first stanza and the second stanza and put them together to form the third word in the third stanza.

Just for example, if my first refers to 'off' and my second refers to 'ice', then my whole will be office.

My first is present - future's past -
A time in which your lot is cast.

My second is my first of space
Defining people's present place.

My whole describes a lack of site -
A place without length, breadth, or height.

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?