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

Take one out and scratch my head, I am now black but once was red. What am I?

what does the below rebus means?

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?

A man dies of old age on his 25 birthday. How is this possible?

If an electric train is travelling south, then which way is the smoke going?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?