Recent Riddles & Brain Teasers

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

Buy me, smell me or deliver me, I do not change.

Who am I?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Using eight eights and addition only, can you make 1000?

Find The Odd One Out

1. FLOW
2. SNIP
3. TRAP
4. DRAW
5. BACK

Solve the equation in the image by looking at the pattern closely.

What happened when the wheel was invented?