I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

what one word does the below rebus identifies?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

What happened when the wheel was invented?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Spot what is wrong here in below Picture?

Why is the Hole below a Lock?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

What is the next number in this matchsticks series riddle?

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?