Can you find the missing piece of the Porsche?

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

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?

If we tie a Sheep to one peg, a circled grass is been eaten by the Sheep. If we tie the Sheep to two pegs with a circle on its neck, then an eclipse is eaten out of the grass by the Sheep. If we want an eclipse then we put two pegs and then put a rope in between them and the other end of the rope is tied up on the Sheep's neck.

How should we tie the peg and the Sheep so that a square is eaten out from the garden grass? We only have one Sheep rope and the peg and the rings.

How is the moon similar to a dollar?

What goes up but never comes down?