You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

Can you name some countries which do not have the alphabet 'A' in them?

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

Can you solve this picture maths equation?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

In the image given, you can find several triangles. Can you count them all?

Find the next number in the series below

21 32 54 87 131 ?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

A convention is held where all the big logicians are summoned. The master places a band on everyone's forehead. Now all of them can see others bands but can't see his own. Then they are told that there are different colours of bands. All the logicians sit in circle and they are further explained that a bell will ring at regular intervals. The moment when a logician knew the colour of band on his forehead, he will leave at the next bell. If anyone leaves at the wrong bell, he will be disqualified.

The master assures the logicians that the puzzle will not be impossible for anyone of them. How will the logicians manage ?

I have teeth but i don't bite. Who Am I ?