If 1+9+8=1, what is 2+8+9?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

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

There are three boxes. One is labeled "APPLES" another is labeled "ORANGES". The last one is labeled "APPLES AND ORANGES". You know that each is labeled incorrectly. You may ask me to pick one fruit from one box which you choose.

How can you label the boxes correctly?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?

Which is the smallest number that you can write using all the vowels exactly once?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?