what does this below rebus represent identXQQQQQME

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Why is a river so rich ?

These types of puzzles are known as charades. What you have to do is to 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 the '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.

I have Rs.50 and I spend it in the way as below.

10+10 and 11+11 can give you the same answer.

Explain how?

In which direction should the missing arrow point?

Can you name four days which start with the letter 'T'?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?