Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

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 always comes into a house through the keyhole?

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

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

I shave every day, but my beard stays the same. What am I?

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?

A boy was driving a car, a girl took a lift from her. She asked his name. The boy said - my name is hidden in my car’s number, find it if you can. After this, she got down Car number was [ WV733N ] Can you guess the name now?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?