What month of the year has 28 days?

Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?

What kind of band never plays music?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

O_er_t_o_

Complete the missing letters of the given word.

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

I guess 76.8% of readers will like this riddle.

What's the least number of people should read this post?

What can you serve, but never eat?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?