What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Why is the Hole below a Lock?

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

Do you know who was buried in John's tomb?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

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?

Spot 5 differences in two Christmas tree below:

what does the below rebus mean?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?