In the image below, can you find the value of an angle(y)

what's the probability of getting a king or a queen from a pack of 52 cards?

Who can jump higher than a Mountain?

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?

What is the next number in the series?

15 29 56 108 208 ?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

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

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?