why number 8549176320 is one of a kind?

How can you make number one disappear by adding something to it?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Which city is three-fifths chick two third cat and 50% goat?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

What do you think with the below Picture ?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?

What number when divided in half becomes zero?