What has 13 hearts but no other organs?

I have an apple tree , number of apple in this tree get doubles every week.

On 30th week , the tree gets completely filled with apples :-)



Can you tell me , on what week does my tree is half covered with apples ?

What does this rebus means ?

PROG WORKRESS

I am lying and I always lie. Tell me whether I am lying or telling the truth.

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

Which is the rope you never skip with?

Can you replace the question mark with the correct number in the below table sequence?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

Count the number of triangles in the picture below: