What famous saying does this rebus mean?

COME SERVED <---
COME SERVED
COME SERVED
COME SERVED
COME SERVED

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

Identify The phrase in the picture.

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

How can you take 2 from 5 and leave 4?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?