What is the word or phrase?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Can you find the six hidden animals in the picture below?

Find the missing number in the sequence below:

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Count the number of squares in the picture below.

When we see 2 but call 10?

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