Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

What has hands, but can’t clap?

Which five letter word can be added at the end of below word to form a
valid word?

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What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?

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?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?