They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

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.

What has 13 hearts but no other organs?

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.

What word begins and ends with an E, but has only one letter?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

You see me once in June, twice in November, and not at all in May. What am I?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?