If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

What number do you get when you multiply all of the numbers on a telephone's number pad?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

Solve the equation in the image by looking at the pattern closely.

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?

What part of Turkey has the most feathers?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?