Find out the missing number in the picture attached:

Jim and Sarah are in a long-distance relationship. Jim buys an engagement ring for Sarah and wants to mail it to her. Unfortunately, the only way to ensure the ring will be received is to place a lock on the package. Jim has locks and Sarah has locks, but neither has keys for each other’s locks. How can they make sure the ring isn’t stolen?

A father's child, a mother's child, yet no one's son.

Who am I?

What can you deduce from the following BrainBat?

CRY
LMKI

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Remove two matchsticks to make the below equation correct.

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

I purchased an awesome ice cream cone having 5 different flavour scoops.
Five flavours are pistachio, mint-chip, strawberry, marshmallow, and raspberry

I will give u some clues so that you can figure out the order of flavours from bottom to top.
1. The bottom flavour of the cone has 10 letters.
2. The marshmallow scoop is between the pistachio and the mint-chip scoop.
3. marshmallow is the raspberry scoop but below the mint-chip scoop.

So can you figure out the flavour of ice cream in order from bottom to top?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.