There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

You can hear me, but you can't touch or see me.

What am I?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

What 5-letter word typed in all capital letters can be read the same upside down?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

What happened when the wheel was invented?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

What does below Rebus mean ?

esgg sgeg gegs gsge

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?