If eleven plus two equals one, what does nine plus five equal?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Count the number of triangles in the given picture.

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Which is the smallest number that you can write using all the vowels exactly once?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

What does this rebus riddle means ?

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?

Count the number of triangles in the picture below: