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

What number comes next in the series?

5 15 5 18 5 24 14 20 _

What occurs twice in a week, once in a year but never in a day?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?

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

How can a man go eight days without sleep?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?