A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Find the next number in the series below.

6 18 270 72090 ?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

Which is Odd One Out and why?

4377

3954

9862

8454

9831