When can we add 2 to 11 and get 1 as the correct answer?

What runs around the whole yard without moving?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Two friends Smith and Andrew were talking about the bravery of their families. Smith told great stories about his courageous grandfather who fought for Britain in "World War I". Andrew told that his grandfather was so brave that in 1919 just after the war he was honoured with a bravery medal with the words "For our Courageous Soldiers In World War I" embedded into it. Smith knows that his friend is lying. How?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

What goes up but never comes down?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?