Can you place six X (crosses) in below board without making three in a row in any way ?

Find the missing number in the sequence below:

What question can you never answer yes to?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

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

The host of a game show offers the guest a choice of three doors. Behind one is an expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

My location can be determined by the below rebus.
So where am i ?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

How many letters are in the alphabet?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?