This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?

What begins with T, ends with T, and has T in it?

Can you find the six hidden animals in the picture below?

Our product and our sum always give the same answer. Who are we?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

What type of tree can I carry in my hand?

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

There is a place where if I stand up straight, I will still be considered sideways.