What does this rebus mean?

O
N
C
E
TIME

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

Which part of London exists in France as well ?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

What came first, the chicken or the egg?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

What goes through cities and fields, but never moves?