How many times do a clock's hands overlap in a day ?

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

The Little ant seems to be always confused. Do you know why?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

What is red and smells like blue paint?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.