Can you count the number of squares in the given picture?

Spot what is wrong here in below Picture?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

By moving just one matchstick, you need to make the below statement true. Can you do it?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

What is next number in the pattern below:

131 517 192 123 ?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Decode below rebus
D
N
A
T
S , D

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

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?