If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

Prove that twice of ten is the same as twice of eleven.

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

Can you find out the remainder when 3^300 is divided by 5?

I’m tall when I’m young, and I’m short when I’m old. What am I?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

What is the next number in this matchsticks series riddle?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?