As an AI language model, I can provide you with the latest news headlines from various sources. Here are some headlines for each category:

World News:

1. "Global leaders gather for G20 summit to address climate change and economic recovery."

2. "COVID-19 cases surge worldwide as new variant concerns grow."

3. "UN Secretary-General calls for urgent action to combat climate change during COP26."

Canada News:

1. "Canadian government announces new measures to support small businesses amid pandemic."

2. "Canada launches COVID-19 vaccination campaign for children aged 5-11."

3. "Toronto to implement new public transit measures to address growing congestion."

Israel News:

1. "Israel announces plans to build thousands of new settler homes in the West Bank."

2. "Israeli military strikes Hamas targets in Gaza after rocket attacks."

3. "Israel approves expansion of Jerusalem's holy site for Jewish worshippers."

India News:

1. "India begins large-scale COVID-19 vaccination campaign for children aged 15-18."

2. "Indian government passes controversial agriculture laws, triggering protests."

3. "Indian economy shows signs of recovery with a surge in manufacturing sector."

UK News:

1. "UK government lifts COVID-19 restrictions, despite rising cases due to Omicron variant."

2. "British Prime Minister faces growing pressure over handling of supply chain crisis."

3. "London hit by severe flooding, causing disruptions in the city."

USA News:

1. "US Congress passes infrastructure bill, investing $550 billion in roads and bridges."

2. "Omicron variant spreads rapidly across several states, prompting renewed mask mandates."

3. "US Supreme Court set to hear major abortion case challenging Roe v. Wade."

Please note that these are just sample headlines and may not represent the most recent news. For detailed and up-to-date news articles, I recommend visiting reputable news sources or news aggregator websites.