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

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

what does the below math rebus puzzle mean?

What kind of band never plays music?

What does the below image rebus riddle means ?

What 5-letter word typed in all capital letters can be read the same upside down?

If 1+9+8=1, what is 2+8+9?