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

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

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

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

How many triangles can you find in this given picture?

A blonde put eyeliner on her head. Why?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

If eleven plus two equals one, what does nine plus five equal?