By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

What time is it when an elephant sits on a fence?

I am sure no one can have two things for dinner. what are they?

What has lots of eyes, but can’t see?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

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 does this mean?

CCCCCCC

Can you find out which triangle will have a bigger area among the following?
1. A triangle with sides 300, 400 and 500
2. A triangle with sides 300, 400 and 700

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?