Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Prove that the below maths equation is true.

8 + 8 = 91

How many letters are in the alphabet?

At a bar, three friends, Mr Green, Mr Red and Mr Blue, were having a drink. One man was wearing a red suit; one a green suit; and the other a blue suit. 'Have you noticed,' said the man in the blue suit, 'that although our suits have colours corresponding to our names, not one of us is wearing a suit that matches our own names?' Mr Red looked at the other two and said, 'You're absolutely correct. What colour suit is each man wearing?

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?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Count the number of squares in the picture below.

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

Replace the question mark with the correct number below.