How can a man go eight days without sleep?

Can you find out the total number of triangles in the given figure?

If your uncle’s sister is not your aunt, what relation is she to you?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

Can you count the number of triangles in the given figure?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

Count the number of squares in the picture below.

What does man love more than life, and hate more than death or mortal strife; that which satisfied men want; the poor have, and the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?