Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

I am white when I am dirty, and black when I am clean. What am I?

What month of the year has 28 days?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Which number comes next in the number series?

2, 9, 30, 93, ?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

What is the fastest way to double your money?

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

What does the rebus below mean?

TEN BADTION

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?