How many times can you subtract the number 5 from 25?

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

who is silent in the parliament?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.

What does a man do only once in his lifetime, but women do once a year after they are 29?

Solve the following series:
AZ, GT, MN, __, YB

What is harder to catch the faster you run?

There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?