What is the riddle which can be asked all day with a different correct answer each time.

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Remove two matchsticks to make the below equation correct.

What is the next number in the series?

15 29 56 108 208 ?

Can you find a five letter word that is left with only two letters if one is removed?

What jumps when it walks and sits when it stands?

One night, a woman receives a call from the police. They tell her that her husband was murdered and that she should come to the crime scene as soon as possible. The woman drops the phone, shocked, and drives 20 minutes to the crime scene. As soon as she reaches the crime scene, the police arrest her and she is convicted of murder. How do the police know she committed the crime?