How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Can you solve the maths in the below-given picture equation?

Using Only Five 5's and any mathematical operator make sum as 37

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

who is silent in the parliament?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What does this rebus means ?

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