Name a key which is hardest to turn.

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

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

Can you find a number that lies one third of the distance between 1/3 and 2/3?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

What number divided by 4 is the same as that number minus 4?

My sock drawer has 26 blue socks, 13 pink socks, 33 green socks, and 12 red socks, how many socks would I have to pull out in the dark to be sure I had a matching pair?

Can you find out which options fits best with the missing column?