what does the below rebus means?

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

What is the fastest way to double your money?

What type of tree can I carry in my hand?

A devotee visits 9 temples when he visits India. All these nine temples have one thing in common - there are 100 steps in every temple. The devotee puts the Re.1 coin after climbing up every step. He does the same while climbing down every step. At each temple, the devotee offers half of his money from his pocket to god. In this way, his pocket becomes empty after he visits the 9th temple.

Can you calculate the total amount he had initially?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Count the number of lines in the image below ?

Can you name some countries which do not have the alphabet 'A' in them?

A farmer went to a market and bought a wolf, a goat, and a cabbage. On his way home, the farmer came to the bank of a river and rented a boat. But crossing the river by boat, the farmer could carry only himself and a single one of his purchases: the wolf, the goat, or the cabbage. If left unattended together, the wolf would eat the goat, or the goat would eat the cabbage. The farmer’s challenge was to carry himself and his purchases to the far bank of the river, leaving each purchase intact. How did he do it?

What is full of holes but still holds water?