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

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?

Christina is practising her dance steps along with her friends. In a particular sequence, all of them form a row. At that point, Niharika is standing in the 4th position from either end of the row.
Can you find out how many girls are practising together?

What does does this rebus picture means ?

Which fur should we be getting from the Lion?

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

Can you tell a 3D object that has just two surfaces?

How can a man go eight days without sleep?

Bay of Bengal is in which state?

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?