If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Detective Rockford was jogging near the beach at 4:30 am.
He hears a sound near the shack "No Michael, Please Do not shoot me".
Next instance he heard the sound of gunfire. Rockford rushes to the shack where he finds women lying dead and a gun in close proximity of three "Doctore Lawyer and a Teacher".

Rockford immediately knew that the Lawyer has committed the crime. How?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

What is the largest number you can write with just 3 digits?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

If you say my name, I will no longer exist. What am I?

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

When it is alive we sing, when it is dead we clap our hands. What is it?