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

How many times can you subtract the number 5 from 25?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

In which direction should the missing arrow point?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

Count the number of lines in the image below ?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

People put me on the table and cut me but do not eat me. What am I?