If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

who is silent in the parliament?

Can you find the thief by just looking at the picture below?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.