What is the word or phrase?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

what does the below math rebus puzzle mean?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

A swan sits at the center of a perfectly circular lake. At an edge of the lake stands a ravenous monster waiting to devour the swan. The monster can not enter the water, but it will run around the circumference of the lake to try to catch the swan as soon as it reaches the shore. The monster moves at 4 times the speed of the swan, and it will always move in the direction along the shore that brings it closer to the swan the quickest. Both the swan and the the monster can change directions in an instant.
The swan knows that if it can reach the lake's shore without the monster right on top of it, it can instantly escape into the surrounding forest.

How can the swan successfully escape?

In the image given, you can find several triangles. Can you count them all?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

What kind of band never plays music?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?