What four weights can be used to balance from 1 to 30 pounds?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

I have eight fingers and two thumbs but I do not live. What Am I?

What is the word or phrase?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

Spot 5 differences in two Christmas tree below:

What is the word or phrase?

Find the 8 in the below-given Image.