What does this mathematical rebus means ?

What jumps when it walks and sits when it stands?

Find the next number in the following series:
6, 14, 26, 98, __?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

A fresh card pile is taken out of a box (the pile has 54 cards including 2 jokers). One joker is taken out and then the cards are shuffled for a good amount of times. After shuffling, two piles are made by dividing that one pile.



What is the possibility that one of the piles will have a card sequence from A to K in order?

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

I have teeth but i don't bite. Who Am I ?

Can you count the number of triangles in the picture below?

What is the word or phrase below?
R | E | A | D

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title